Home / 31,531.43-43,513.09-17,384.28

Finding the Fourth Proportional to 31,531.43, 43,513.09 and 17,384.28

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Solution

The fourth proportional to 31,531.43, 43,513.09 and 17,384.28 is: 23,990.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,531.43 : 43,513.09 = 17,384.28 : x
  2. Step 2: Convert to fraction form
    31,531.43/43,513.09 = 17,384.28/x
  3. Step 3: Cross multiply
    31,531.43x = 43,513.09 × 17,384.28
  4. Step 4: Simplify right side
    31,531.43x = 756,443,740.23
  5. Step 5: Solve for x
    x = 756,443,740.23/31,531.43
  6. Step 6: Final answer
    x = 23,990.15

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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.