Home / 31,276.74-43,161.84-17,129.55

Finding the Fourth Proportional to 31,276.74, 43,161.84 and 17,129.55

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Solution

The fourth proportional to 31,276.74, 43,161.84 and 17,129.55 is: 23,638.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,276.74 : 43,161.84 = 17,129.55 : x
  2. Step 2: Convert to fraction form
    31,276.74/43,161.84 = 17,129.55/x
  3. Step 3: Cross multiply
    31,276.74x = 43,161.84 × 17,129.55
  4. Step 4: Simplify right side
    31,276.74x = 739,342,896.37
  5. Step 5: Solve for x
    x = 739,342,896.37/31,276.74
  6. Step 6: Final answer
    x = 23,638.75

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Find fourth proportional to 15,638.37, 21,580.92 and 8,564.78
Half scale
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Double scale
Find fourth proportional to 31,277.74, 43,163.22 and 17,130.55
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.