Home / 31,407.51-43,340.76-17,257.62

Finding the Fourth Proportional to 31,407.51, 43,340.76 and 17,257.62

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Solution

The fourth proportional to 31,407.51, 43,340.76 and 17,257.62 is: 23,814.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,407.51 : 43,340.76 = 17,257.62 : x
  2. Step 2: Convert to fraction form
    31,407.51/43,340.76 = 17,257.62/x
  3. Step 3: Cross multiply
    31,407.51x = 43,340.76 × 17,257.62
  4. Step 4: Simplify right side
    31,407.51x = 747,958,366.59
  5. Step 5: Solve for x
    x = 747,958,366.59/31,407.51
  6. Step 6: Final answer
    x = 23,814.63

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Find fourth proportional to 15,703.76, 21,670.38 and 8,628.81
Half scale
Find fourth proportional to 62,815.02, 86,681.52 and 34,515.24
Double scale
Find fourth proportional to 31,408.51, 43,342.14 and 17,258.62
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.