Home / 25,740.38-35,517.49-15,132.08

Finding the Fourth Proportional to 25,740.38, 35,517.49 and 15,132.08

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Solution

The fourth proportional to 25,740.38, 35,517.49 and 15,132.08 is: 20,879.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,740.38 : 35,517.49 = 15,132.08 : x
  2. Step 2: Convert to fraction form
    25,740.38/35,517.49 = 15,132.08/x
  3. Step 3: Cross multiply
    25,740.38x = 35,517.49 × 15,132.08
  4. Step 4: Simplify right side
    25,740.38x = 537,453,551.04
  5. Step 5: Solve for x
    x = 537,453,551.04/25,740.38
  6. Step 6: Final answer
    x = 20,879.78

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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.