Home / 39,142.50-54,016.65-22,375.86

Finding the Fourth Proportional to 39,142.50, 54,016.65 and 22,375.86

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Solution

The fourth proportional to 39,142.50, 54,016.65 and 22,375.86 is: 30,878.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,142.50 : 54,016.65 = 22,375.86 : x
  2. Step 2: Convert to fraction form
    39,142.50/54,016.65 = 22,375.86/x
  3. Step 3: Cross multiply
    39,142.50x = 54,016.65 × 22,375.86
  4. Step 4: Simplify right side
    39,142.50x = 1,208,668,998.07
  5. Step 5: Solve for x
    x = 1,208,668,998.07/39,142.50
  6. Step 6: Final answer
    x = 30,878.69

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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.