Home / 25,680.12-38,520.17-9,672.68

Finding the Fourth Proportional to 25,680.12, 38,520.17 and 9,672.68

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Solution

The fourth proportional to 25,680.12, 38,520.17 and 9,672.68 is: 14,509.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,680.12 : 38,520.17 = 9,672.68 : x
  2. Step 2: Convert to fraction form
    25,680.12/38,520.17 = 9,672.68/x
  3. Step 3: Cross multiply
    25,680.12x = 38,520.17 × 9,672.68
  4. Step 4: Simplify right side
    25,680.12x = 372,593,277.96
  5. Step 5: Solve for x
    x = 372,593,277.96/25,680.12
  6. Step 6: Final answer
    x = 14,509.02

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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.