Home / 31,424.76-43,367.40-17,278.92

Finding the Fourth Proportional to 31,424.76, 43,367.40 and 17,278.92

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Solution

The fourth proportional to 31,424.76, 43,367.40 and 17,278.92 is: 23,845.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,424.76 : 43,367.40 = 17,278.92 : x
  2. Step 2: Convert to fraction form
    31,424.76/43,367.40 = 17,278.92/x
  3. Step 3: Cross multiply
    31,424.76x = 43,367.40 × 17,278.92
  4. Step 4: Simplify right side
    31,424.76x = 749,341,835.21
  5. Step 5: Solve for x
    x = 749,341,835.21/31,424.76
  6. Step 6: Final answer
    x = 23,845.59

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Double scale
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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.