Home / 21,853.20-32,769-10,158.96

Finding the Fourth Proportional to 21,853.20, 32,769 and 10,158.96

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Solution

The fourth proportional to 21,853.20, 32,769 and 10,158.96 is: 15,233.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,853.20 : 32,769 = 10,158.96 : x
  2. Step 2: Convert to fraction form
    21,853.20/32,769 = 10,158.96/x
  3. Step 3: Cross multiply
    21,853.20x = 32,769 × 10,158.96
  4. Step 4: Simplify right side
    21,853.20x = 332,898,960.24
  5. Step 5: Solve for x
    x = 332,898,960.24/21,853.20
  6. Step 6: Final answer
    x = 15,233.42

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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.