Home / 39,318.85-54,278.40-25,179.76

Finding the Fourth Proportional to 39,318.85, 54,278.40 and 25,179.76

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Solution

The fourth proportional to 39,318.85, 54,278.40 and 25,179.76 is: 34,759.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,318.85 : 54,278.40 = 25,179.76 : x
  2. Step 2: Convert to fraction form
    39,318.85/54,278.40 = 25,179.76/x
  3. Step 3: Cross multiply
    39,318.85x = 54,278.40 × 25,179.76
  4. Step 4: Simplify right side
    39,318.85x = 1,366,717,085.18
  5. Step 5: Solve for x
    x = 1,366,717,085.18/39,318.85
  6. Step 6: Final answer
    x = 34,759.84

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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.