Home / 39,767.70-54,877.10-21,862.70

Finding the Fourth Proportional to 39,767.70, 54,877.10 and 21,862.70

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Solution

The fourth proportional to 39,767.70, 54,877.10 and 21,862.70 is: 30,169.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,767.70 : 54,877.10 = 21,862.70 : x
  2. Step 2: Convert to fraction form
    39,767.70/54,877.10 = 21,862.70/x
  3. Step 3: Cross multiply
    39,767.70x = 54,877.10 × 21,862.70
  4. Step 4: Simplify right side
    39,767.70x = 1,199,761,190.47
  5. Step 5: Solve for x
    x = 1,199,761,190.47/39,767.70
  6. Step 6: Final answer
    x = 30,169.24

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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.