Home / 20,242.35-27,934.45-11,167.49

Finding the Fourth Proportional to 20,242.35, 27,934.45 and 11,167.49

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Solution

The fourth proportional to 20,242.35, 27,934.45 and 11,167.49 is: 15,411.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.35 : 27,934.45 = 11,167.49 : x
  2. Step 2: Convert to fraction form
    20,242.35/27,934.45 = 11,167.49/x
  3. Step 3: Cross multiply
    20,242.35x = 27,934.45 × 11,167.49
  4. Step 4: Simplify right side
    20,242.35x = 311,957,732.95
  5. Step 5: Solve for x
    x = 311,957,732.95/20,242.35
  6. Step 6: Final answer
    x = 15,411.14

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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.