Home / 25,670.68-38,505.74-8,140.04

Finding the Fourth Proportional to 25,670.68, 38,505.74 and 8,140.04

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Solution

The fourth proportional to 25,670.68, 38,505.74 and 8,140.04 is: 12,209.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,670.68 : 38,505.74 = 8,140.04 : x
  2. Step 2: Convert to fraction form
    25,670.68/38,505.74 = 8,140.04/x
  3. Step 3: Cross multiply
    25,670.68x = 38,505.74 × 8,140.04
  4. Step 4: Simplify right side
    25,670.68x = 313,438,263.83
  5. Step 5: Solve for x
    x = 313,438,263.83/25,670.68
  6. Step 6: Final answer
    x = 12,209.97

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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.