Home / 25,811.68-38,724.18-8,281.66

Finding the Fourth Proportional to 25,811.68, 38,724.18 and 8,281.66

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Solution

The fourth proportional to 25,811.68, 38,724.18 and 8,281.66 is: 12,424.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,811.68 : 38,724.18 = 8,281.66 : x
  2. Step 2: Convert to fraction form
    25,811.68/38,724.18 = 8,281.66/x
  3. Step 3: Cross multiply
    25,811.68x = 38,724.18 × 8,281.66
  4. Step 4: Simplify right side
    25,811.68x = 320,700,492.54
  5. Step 5: Solve for x
    x = 320,700,492.54/25,811.68
  6. Step 6: Final answer
    x = 12,424.63

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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.