Home / 31,401.87-43,335.38-17,255.07

Finding the Fourth Proportional to 31,401.87, 43,335.38 and 17,255.07

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Solution

The fourth proportional to 31,401.87, 43,335.38 and 17,255.07 is: 23,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,401.87 : 43,335.38 = 17,255.07 : x
  2. Step 2: Convert to fraction form
    31,401.87/43,335.38 = 17,255.07/x
  3. Step 3: Cross multiply
    31,401.87x = 43,335.38 × 17,255.07
  4. Step 4: Simplify right side
    31,401.87x = 747,754,929.10
  5. Step 5: Solve for x
    x = 747,754,929.10/31,401.87
  6. Step 6: Final answer
    x = 23,812.43

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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.