Home / 39,379.16-54,343.50-21,474.44

Finding the Fourth Proportional to 39,379.16, 54,343.50 and 21,474.44

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Solution

The fourth proportional to 39,379.16, 54,343.50 and 21,474.44 is: 29,634.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,379.16 : 54,343.50 = 21,474.44 : x
  2. Step 2: Convert to fraction form
    39,379.16/54,343.50 = 21,474.44/x
  3. Step 3: Cross multiply
    39,379.16x = 54,343.50 × 21,474.44
  4. Step 4: Simplify right side
    39,379.16x = 1,166,996,230.14
  5. Step 5: Solve for x
    x = 1,166,996,230.14/39,379.16
  6. Step 6: Final answer
    x = 29,634.87

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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.