Home / 22,149.76-30,565.28-12,711.68

Finding the Fourth Proportional to 22,149.76, 30,565.28 and 12,711.68

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Solution

The fourth proportional to 22,149.76, 30,565.28 and 12,711.68 is: 17,541.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,149.76 : 30,565.28 = 12,711.68 : x
  2. Step 2: Convert to fraction form
    22,149.76/30,565.28 = 12,711.68/x
  3. Step 3: Cross multiply
    22,149.76x = 30,565.28 × 12,711.68
  4. Step 4: Simplify right side
    22,149.76x = 388,536,058.47
  5. Step 5: Solve for x
    x = 388,536,058.47/22,149.76
  6. Step 6: Final answer
    x = 17,541.32

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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.