Home / 21,439.60-32,164.50-8,952.70

Finding the Fourth Proportional to 21,439.60, 32,164.50 and 8,952.70

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Solution

The fourth proportional to 21,439.60, 32,164.50 and 8,952.70 is: 13,431.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.60 : 32,164.50 = 8,952.70 : x
  2. Step 2: Convert to fraction form
    21,439.60/32,164.50 = 8,952.70/x
  3. Step 3: Cross multiply
    21,439.60x = 32,164.50 × 8,952.70
  4. Step 4: Simplify right side
    21,439.60x = 287,959,119.15
  5. Step 5: Solve for x
    x = 287,959,119.15/21,439.60
  6. Step 6: Final answer
    x = 13,431.18

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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.