Home / 28,778.18-43,167.36-8,001.68

Finding the Fourth Proportional to 28,778.18, 43,167.36 and 8,001.68

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Solution

The fourth proportional to 28,778.18, 43,167.36 and 8,001.68 is: 12,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778.18 : 43,167.36 = 8,001.68 : x
  2. Step 2: Convert to fraction form
    28,778.18/43,167.36 = 8,001.68/x
  3. Step 3: Cross multiply
    28,778.18x = 43,167.36 × 8,001.68
  4. Step 4: Simplify right side
    28,778.18x = 345,411,401.16
  5. Step 5: Solve for x
    x = 345,411,401.16/28,778.18
  6. Step 6: Final answer
    x = 12,002.55

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1.5x scale

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.