Home / 39,765.60-54,877.10-21,862.26

Finding the Fourth Proportional to 39,765.60, 54,877.10 and 21,862.26

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Solution

The fourth proportional to 39,765.60, 54,877.10 and 21,862.26 is: 30,170.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,765.60 : 54,877.10 = 21,862.26 : x
  2. Step 2: Convert to fraction form
    39,765.60/54,877.10 = 21,862.26/x
  3. Step 3: Cross multiply
    39,765.60x = 54,877.10 × 21,862.26
  4. Step 4: Simplify right side
    39,765.60x = 1,199,737,428.25
  5. Step 5: Solve for x
    x = 1,199,737,428.25/39,765.60
  6. Step 6: Final answer
    x = 30,170.23

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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.