Home / 14,242.38-21,347.25-5,472.78

Finding the Fourth Proportional to 14,242.38, 21,347.25 and 5,472.78

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Solution

The fourth proportional to 14,242.38, 21,347.25 and 5,472.78 is: 8,202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,242.38 : 21,347.25 = 5,472.78 : x
  2. Step 2: Convert to fraction form
    14,242.38/21,347.25 = 5,472.78/x
  3. Step 3: Cross multiply
    14,242.38x = 21,347.25 × 5,472.78
  4. Step 4: Simplify right side
    14,242.38x = 116,828,802.86
  5. Step 5: Solve for x
    x = 116,828,802.86/14,242.38
  6. Step 6: Final answer
    x = 8,202.90

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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.