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Finding the Fourth Proportional to 25,652.59, 35,400.72 and 15,042.40

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Solution

The fourth proportional to 25,652.59, 35,400.72 and 15,042.40 is: 20,758.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,652.59 : 35,400.72 = 15,042.40 : x
  2. Step 2: Convert to fraction form
    25,652.59/35,400.72 = 15,042.40/x
  3. Step 3: Cross multiply
    25,652.59x = 35,400.72 × 15,042.40
  4. Step 4: Simplify right side
    25,652.59x = 532,511,790.53
  5. Step 5: Solve for x
    x = 532,511,790.53/25,652.59
  6. Step 6: Final answer
    x = 20,758.60

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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.