Home / 39,767.14-54,877.92-21,861.98

Finding the Fourth Proportional to 39,767.14, 54,877.92 and 21,861.98

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Solution

The fourth proportional to 39,767.14, 54,877.92 and 21,861.98 is: 30,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,767.14 : 54,877.92 = 21,861.98 : x
  2. Step 2: Convert to fraction form
    39,767.14/54,877.92 = 21,861.98/x
  3. Step 3: Cross multiply
    39,767.14x = 54,877.92 × 21,861.98
  4. Step 4: Simplify right side
    39,767.14x = 1,199,739,989.48
  5. Step 5: Solve for x
    x = 1,199,739,989.48/39,767.14
  6. Step 6: Final answer
    x = 30,169.13

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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.