Home / 21,486.20-32,229.30-14,487.80

Finding the Fourth Proportional to 21,486.20, 32,229.30 and 14,487.80

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Solution

The fourth proportional to 21,486.20, 32,229.30 and 14,487.80 is: 21,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.20 : 32,229.30 = 14,487.80 : x
  2. Step 2: Convert to fraction form
    21,486.20/32,229.30 = 14,487.80/x
  3. Step 3: Cross multiply
    21,486.20x = 32,229.30 × 14,487.80
  4. Step 4: Simplify right side
    21,486.20x = 466,931,652.54
  5. Step 5: Solve for x
    x = 466,931,652.54/21,486.20
  6. Step 6: Final answer
    x = 21,731.70

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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.