Home / 21,981.60-32,972.40-16,149.60

Finding the Fourth Proportional to 21,981.60, 32,972.40 and 16,149.60

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Solution

The fourth proportional to 21,981.60, 32,972.40 and 16,149.60 is: 24,224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,981.60 : 32,972.40 = 16,149.60 : x
  2. Step 2: Convert to fraction form
    21,981.60/32,972.40 = 16,149.60/x
  3. Step 3: Cross multiply
    21,981.60x = 32,972.40 × 16,149.60
  4. Step 4: Simplify right side
    21,981.60x = 532,491,071.04
  5. Step 5: Solve for x
    x = 532,491,071.04/21,981.60
  6. Step 6: Final answer
    x = 24,224.40

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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.