Home / 28,808.28-43,214.13-8,031.78

Finding the Fourth Proportional to 28,808.28, 43,214.13 and 8,031.78

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Solution

The fourth proportional to 28,808.28, 43,214.13 and 8,031.78 is: 12,048.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808.28 : 43,214.13 = 8,031.78 : x
  2. Step 2: Convert to fraction form
    28,808.28/43,214.13 = 8,031.78/x
  3. Step 3: Cross multiply
    28,808.28x = 43,214.13 × 8,031.78
  4. Step 4: Simplify right side
    28,808.28x = 347,086,385.05
  5. Step 5: Solve for x
    x = 347,086,385.05/28,808.28
  6. Step 6: Final answer
    x = 12,048.15

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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.