Home / 28,132.18-42,191.99-8,408.17

Finding the Fourth Proportional to 28,132.18, 42,191.99 and 8,408.17

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Solution

The fourth proportional to 28,132.18, 42,191.99 and 8,408.17 is: 12,610.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,132.18 : 42,191.99 = 8,408.17 : x
  2. Step 2: Convert to fraction form
    28,132.18/42,191.99 = 8,408.17/x
  3. Step 3: Cross multiply
    28,132.18x = 42,191.99 × 8,408.17
  4. Step 4: Simplify right side
    28,132.18x = 354,757,466.79
  5. Step 5: Solve for x
    x = 354,757,466.79/28,132.18
  6. Step 6: Final answer
    x = 12,610.38

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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.