Home / 25,861.40-38,798.19-8,330.57

Finding the Fourth Proportional to 25,861.40, 38,798.19 and 8,330.57

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Solution

The fourth proportional to 25,861.40, 38,798.19 and 8,330.57 is: 12,497.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,861.40 : 38,798.19 = 8,330.57 : x
  2. Step 2: Convert to fraction form
    25,861.40/38,798.19 = 8,330.57/x
  3. Step 3: Cross multiply
    25,861.40x = 38,798.19 × 8,330.57
  4. Step 4: Simplify right side
    25,861.40x = 323,210,843.68
  5. Step 5: Solve for x
    x = 323,210,843.68/25,861.40
  6. Step 6: Final answer
    x = 12,497.81

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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.