Home / 31,331.97-47,008.50-11,612.13

Finding the Fourth Proportional to 31,331.97, 47,008.50 and 11,612.13

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Solution

The fourth proportional to 31,331.97, 47,008.50 and 11,612.13 is: 17,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,331.97 : 47,008.50 = 11,612.13 : x
  2. Step 2: Convert to fraction form
    31,331.97/47,008.50 = 11,612.13/x
  3. Step 3: Cross multiply
    31,331.97x = 47,008.50 × 11,612.13
  4. Step 4: Simplify right side
    31,331.97x = 545,868,813.11
  5. Step 5: Solve for x
    x = 545,868,813.11/31,331.97
  6. Step 6: Final answer
    x = 17,422.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.