Home / 38,174.38-52,679.66-21,178.54

Finding the Fourth Proportional to 38,174.38, 52,679.66 and 21,178.54

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Solution

The fourth proportional to 38,174.38, 52,679.66 and 21,178.54 is: 29,225.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,174.38 : 52,679.66 = 21,178.54 : x
  2. Step 2: Convert to fraction form
    38,174.38/52,679.66 = 21,178.54/x
  3. Step 3: Cross multiply
    38,174.38x = 52,679.66 × 21,178.54
  4. Step 4: Simplify right side
    38,174.38x = 1,115,678,286.50
  5. Step 5: Solve for x
    x = 1,115,678,286.50/38,174.38
  6. Step 6: Final answer
    x = 29,225.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.