Home / 20,542.17-28,348.16-11,110.74

Finding the Fourth Proportional to 20,542.17, 28,348.16 and 11,110.74

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Solution

The fourth proportional to 20,542.17, 28,348.16 and 11,110.74 is: 15,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.17 : 28,348.16 = 11,110.74 : x
  2. Step 2: Convert to fraction form
    20,542.17/28,348.16 = 11,110.74/x
  3. Step 3: Cross multiply
    20,542.17x = 28,348.16 × 11,110.74
  4. Step 4: Simplify right side
    20,542.17x = 314,969,035.24
  5. Step 5: Solve for x
    x = 314,969,035.24/20,542.17
  6. Step 6: Final answer
    x = 15,332.80

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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.