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Finding the Fourth Proportional to 25,671, 38,395.32 and 15,115.86

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Solution

The fourth proportional to 25,671, 38,395.32 and 15,115.86 is: 22,608.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,671 : 38,395.32 = 15,115.86 : x
  2. Step 2: Convert to fraction form
    25,671/38,395.32 = 15,115.86/x
  3. Step 3: Cross multiply
    25,671x = 38,395.32 × 15,115.86
  4. Step 4: Simplify right side
    25,671x = 580,378,281.78
  5. Step 5: Solve for x
    x = 580,378,281.78/25,671
  6. Step 6: Final answer
    x = 22,608.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.