Home / 20,388.97-28,123.82-14,732.02

Finding the Fourth Proportional to 20,388.97, 28,123.82 and 14,732.02

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Solution

The fourth proportional to 20,388.97, 28,123.82 and 14,732.02 is: 20,320.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388.97 : 28,123.82 = 14,732.02 : x
  2. Step 2: Convert to fraction form
    20,388.97/28,123.82 = 14,732.02/x
  3. Step 3: Cross multiply
    20,388.97x = 28,123.82 × 14,732.02
  4. Step 4: Simplify right side
    20,388.97x = 414,320,574.92
  5. Step 5: Solve for x
    x = 414,320,574.92/20,388.97
  6. Step 6: Final answer
    x = 20,320.82

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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.