Home / 16,389.28-24,540.18-8,581.68

Finding the Fourth Proportional to 16,389.28, 24,540.18 and 8,581.68

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Solution

The fourth proportional to 16,389.28, 24,540.18 and 8,581.68 is: 12,849.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,389.28 : 24,540.18 = 8,581.68 : x
  2. Step 2: Convert to fraction form
    16,389.28/24,540.18 = 8,581.68/x
  3. Step 3: Cross multiply
    16,389.28x = 24,540.18 × 8,581.68
  4. Step 4: Simplify right side
    16,389.28x = 210,595,971.90
  5. Step 5: Solve for x
    x = 210,595,971.90/16,389.28
  6. Step 6: Final answer
    x = 12,849.62

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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.