Home / 25,152.30-34,707.78-15,078.86

Finding the Fourth Proportional to 25,152.30, 34,707.78 and 15,078.86

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Solution

The fourth proportional to 25,152.30, 34,707.78 and 15,078.86 is: 20,807.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,152.30 : 34,707.78 = 15,078.86 : x
  2. Step 2: Convert to fraction form
    25,152.30/34,707.78 = 15,078.86/x
  3. Step 3: Cross multiply
    25,152.30x = 34,707.78 × 15,078.86
  4. Step 4: Simplify right side
    25,152.30x = 523,353,755.53
  5. Step 5: Solve for x
    x = 523,353,755.53/25,152.30
  6. Step 6: Final answer
    x = 20,807.39

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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.