Home / 25,600.55-38,400.84-8,071.75

Finding the Fourth Proportional to 25,600.55, 38,400.84 and 8,071.75

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Solution

The fourth proportional to 25,600.55, 38,400.84 and 8,071.75 is: 12,107.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,600.55 : 38,400.84 = 8,071.75 : x
  2. Step 2: Convert to fraction form
    25,600.55/38,400.84 = 8,071.75/x
  3. Step 3: Cross multiply
    25,600.55x = 38,400.84 × 8,071.75
  4. Step 4: Simplify right side
    25,600.55x = 309,961,747.91
  5. Step 5: Solve for x
    x = 309,961,747.91/25,600.55
  6. Step 6: Final answer
    x = 12,107.62

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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.