Home / 38,742.25-53,403.65-25,306.78

Finding the Fourth Proportional to 38,742.25, 53,403.65 and 25,306.78

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Solution

The fourth proportional to 38,742.25, 53,403.65 and 25,306.78 is: 34,883.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,742.25 : 53,403.65 = 25,306.78 : x
  2. Step 2: Convert to fraction form
    38,742.25/53,403.65 = 25,306.78/x
  3. Step 3: Cross multiply
    38,742.25x = 53,403.65 × 25,306.78
  4. Step 4: Simplify right side
    38,742.25x = 1,351,474,161.70
  5. Step 5: Solve for x
    x = 1,351,474,161.70/38,742.25
  6. Step 6: Final answer
    x = 34,883.73

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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.