Home / 22,838.43-31,517.20-12,767.28

Finding the Fourth Proportional to 22,838.43, 31,517.20 and 12,767.28

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Solution

The fourth proportional to 22,838.43, 31,517.20 and 12,767.28 is: 17,618.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,838.43 : 31,517.20 = 12,767.28 : x
  2. Step 2: Convert to fraction form
    22,838.43/31,517.20 = 12,767.28/x
  3. Step 3: Cross multiply
    22,838.43x = 31,517.20 × 12,767.28
  4. Step 4: Simplify right side
    22,838.43x = 402,388,917.22
  5. Step 5: Solve for x
    x = 402,388,917.22/22,838.43
  6. Step 6: Final answer
    x = 17,618.94

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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.