Home / 21,805.60-32,724.96-15,977.44

Finding the Fourth Proportional to 21,805.60, 32,724.96 and 15,977.44

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Solution

The fourth proportional to 21,805.60, 32,724.96 and 15,977.44 is: 23,978.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,805.60 : 32,724.96 = 15,977.44 : x
  2. Step 2: Convert to fraction form
    21,805.60/32,724.96 = 15,977.44/x
  3. Step 3: Cross multiply
    21,805.60x = 32,724.96 × 15,977.44
  4. Step 4: Simplify right side
    21,805.60x = 522,861,084.90
  5. Step 5: Solve for x
    x = 522,861,084.90/21,805.60
  6. Step 6: Final answer
    x = 23,978.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.