Home / 21,635.08-32,432.56-8,487.56

Finding the Fourth Proportional to 21,635.08, 32,432.56 and 8,487.56

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Solution

The fourth proportional to 21,635.08, 32,432.56 and 8,487.56 is: 12,723.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,635.08 : 32,432.56 = 8,487.56 : x
  2. Step 2: Convert to fraction form
    21,635.08/32,432.56 = 8,487.56/x
  3. Step 3: Cross multiply
    21,635.08x = 32,432.56 × 8,487.56
  4. Step 4: Simplify right side
    21,635.08x = 275,273,298.95
  5. Step 5: Solve for x
    x = 275,273,298.95/21,635.08
  6. Step 6: Final answer
    x = 12,723.47

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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.