Home / 16,489.20-24,733.80-12,115.20

Finding the Fourth Proportional to 16,489.20, 24,733.80 and 12,115.20

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Solution

The fourth proportional to 16,489.20, 24,733.80 and 12,115.20 is: 18,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,489.20 : 24,733.80 = 12,115.20 : x
  2. Step 2: Convert to fraction form
    16,489.20/24,733.80 = 12,115.20/x
  3. Step 3: Cross multiply
    16,489.20x = 24,733.80 × 12,115.20
  4. Step 4: Simplify right side
    16,489.20x = 299,654,933.76
  5. Step 5: Solve for x
    x = 299,654,933.76/16,489.20
  6. Step 6: Final answer
    x = 18,172.80

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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.