Home / 39,753.38-54,859.56-21,849.50

Finding the Fourth Proportional to 39,753.38, 54,859.56 and 21,849.50

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Solution

The fourth proportional to 39,753.38, 54,859.56 and 21,849.50 is: 30,152.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,753.38 : 54,859.56 = 21,849.50 : x
  2. Step 2: Convert to fraction form
    39,753.38/54,859.56 = 21,849.50/x
  3. Step 3: Cross multiply
    39,753.38x = 54,859.56 × 21,849.50
  4. Step 4: Simplify right side
    39,753.38x = 1,198,653,956.22
  5. Step 5: Solve for x
    x = 1,198,653,956.22/39,753.38
  6. Step 6: Final answer
    x = 30,152.25

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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.