Home / 25,560.12-38,340.30-8,920.08

Finding the Fourth Proportional to 25,560.12, 38,340.30 and 8,920.08

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Solution

The fourth proportional to 25,560.12, 38,340.30 and 8,920.08 is: 13,380.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,560.12 : 38,340.30 = 8,920.08 : x
  2. Step 2: Convert to fraction form
    25,560.12/38,340.30 = 8,920.08/x
  3. Step 3: Cross multiply
    25,560.12x = 38,340.30 × 8,920.08
  4. Step 4: Simplify right side
    25,560.12x = 341,998,543.22
  5. Step 5: Solve for x
    x = 341,998,543.22/25,560.12
  6. Step 6: Final answer
    x = 13,380.16

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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.