Home / 39,327.90-54,273.46-21,423.86

Finding the Fourth Proportional to 39,327.90, 54,273.46 and 21,423.86

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Solution

The fourth proportional to 39,327.90, 54,273.46 and 21,423.86 is: 29,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,327.90 : 54,273.46 = 21,423.86 : x
  2. Step 2: Convert to fraction form
    39,327.90/54,273.46 = 21,423.86/x
  3. Step 3: Cross multiply
    39,327.90x = 54,273.46 × 21,423.86
  4. Step 4: Simplify right side
    39,327.90x = 1,162,747,008.76
  5. Step 5: Solve for x
    x = 1,162,747,008.76/39,327.90
  6. Step 6: Final answer
    x = 29,565.45

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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.