Home / 39,402.72-54,375.48-22,406.96

Finding the Fourth Proportional to 39,402.72, 54,375.48 and 22,406.96

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Solution

The fourth proportional to 39,402.72, 54,375.48 and 22,406.96 is: 30,921.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,402.72 : 54,375.48 = 22,406.96 : x
  2. Step 2: Convert to fraction form
    39,402.72/54,375.48 = 22,406.96/x
  3. Step 3: Cross multiply
    39,402.72x = 54,375.48 × 22,406.96
  4. Step 4: Simplify right side
    39,402.72x = 1,218,388,933.46
  5. Step 5: Solve for x
    x = 1,218,388,933.46/39,402.72
  6. Step 6: Final answer
    x = 30,921.44

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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.