Home / 39,656.53-54,729.52-21,755.02

Finding the Fourth Proportional to 39,656.53, 54,729.52 and 21,755.02

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Solution

The fourth proportional to 39,656.53, 54,729.52 and 21,755.02 is: 30,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,656.53 : 54,729.52 = 21,755.02 : x
  2. Step 2: Convert to fraction form
    39,656.53/54,729.52 = 21,755.02/x
  3. Step 3: Cross multiply
    39,656.53x = 54,729.52 × 21,755.02
  4. Step 4: Simplify right side
    39,656.53x = 1,190,641,693.42
  5. Step 5: Solve for x
    x = 1,190,641,693.42/39,656.53
  6. Step 6: Final answer
    x = 30,023.85

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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.