Home / 39,560.78-54,591.62-21,652.22

Finding the Fourth Proportional to 39,560.78, 54,591.62 and 21,652.22

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Solution

The fourth proportional to 39,560.78, 54,591.62 and 21,652.22 is: 29,878.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,560.78 : 54,591.62 = 21,652.22 : x
  2. Step 2: Convert to fraction form
    39,560.78/54,591.62 = 21,652.22/x
  3. Step 3: Cross multiply
    39,560.78x = 54,591.62 × 21,652.22
  4. Step 4: Simplify right side
    39,560.78x = 1,182,029,766.40
  5. Step 5: Solve for x
    x = 1,182,029,766.40/39,560.78
  6. Step 6: Final answer
    x = 29,878.83

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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.