Home / 25,814.28-38,708.58-8,281.82

Finding the Fourth Proportional to 25,814.28, 38,708.58 and 8,281.82

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Solution

The fourth proportional to 25,814.28, 38,708.58 and 8,281.82 is: 12,418.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,814.28 : 38,708.58 = 8,281.82 : x
  2. Step 2: Convert to fraction form
    25,814.28/38,708.58 = 8,281.82/x
  3. Step 3: Cross multiply
    25,814.28x = 38,708.58 × 8,281.82
  4. Step 4: Simplify right side
    25,814.28x = 320,577,492.02
  5. Step 5: Solve for x
    x = 320,577,492.02/25,814.28
  6. Step 6: Final answer
    x = 12,418.61

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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.