Home / 25,811.18-38,723.44-8,281.16

Finding the Fourth Proportional to 25,811.18, 38,723.44 and 8,281.16

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Solution

The fourth proportional to 25,811.18, 38,723.44 and 8,281.16 is: 12,423.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,811.18 : 38,723.44 = 8,281.16 : x
  2. Step 2: Convert to fraction form
    25,811.18/38,723.44 = 8,281.16/x
  3. Step 3: Cross multiply
    25,811.18x = 38,723.44 × 8,281.16
  4. Step 4: Simplify right side
    25,811.18x = 320,675,002.39
  5. Step 5: Solve for x
    x = 320,675,002.39/25,811.18
  6. Step 6: Final answer
    x = 12,423.88

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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.