Home / 20,294.97-28,008.17-11,342.49

Finding the Fourth Proportional to 20,294.97, 28,008.17 and 11,342.49

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Solution

The fourth proportional to 20,294.97, 28,008.17 and 11,342.49 is: 15,653.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.97 : 28,008.17 = 11,342.49 : x
  2. Step 2: Convert to fraction form
    20,294.97/28,008.17 = 11,342.49/x
  3. Step 3: Cross multiply
    20,294.97x = 28,008.17 × 11,342.49
  4. Step 4: Simplify right side
    20,294.97x = 317,682,331.43
  5. Step 5: Solve for x
    x = 317,682,331.43/20,294.97
  6. Step 6: Final answer
    x = 15,653.25

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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.