Home / 39,247.38-54,162.72-21,343.92

Finding the Fourth Proportional to 39,247.38, 54,162.72 and 21,343.92

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Solution

The fourth proportional to 39,247.38, 54,162.72 and 21,343.92 is: 29,455.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,247.38 : 54,162.72 = 21,343.92 : x
  2. Step 2: Convert to fraction form
    39,247.38/54,162.72 = 21,343.92/x
  3. Step 3: Cross multiply
    39,247.38x = 54,162.72 × 21,343.92
  4. Step 4: Simplify right side
    39,247.38x = 1,156,044,762.66
  5. Step 5: Solve for x
    x = 1,156,044,762.66/39,247.38
  6. Step 6: Final answer
    x = 29,455.34

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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.