Home / 22,201.43-30,635.19-12,642.57

Finding the Fourth Proportional to 22,201.43, 30,635.19 and 12,642.57

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Solution

The fourth proportional to 22,201.43, 30,635.19 and 12,642.57 is: 17,445.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,201.43 : 30,635.19 = 12,642.57 : x
  2. Step 2: Convert to fraction form
    22,201.43/30,635.19 = 12,642.57/x
  3. Step 3: Cross multiply
    22,201.43x = 30,635.19 × 12,642.57
  4. Step 4: Simplify right side
    22,201.43x = 387,307,534.04
  5. Step 5: Solve for x
    x = 387,307,534.04/22,201.43
  6. Step 6: Final answer
    x = 17,445.17

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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.