Home / 28,327.13-42,491.59-8,605.85

Finding the Fourth Proportional to 28,327.13, 42,491.59 and 8,605.85

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Solution

The fourth proportional to 28,327.13, 42,491.59 and 8,605.85 is: 12,909.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.13 : 42,491.59 = 8,605.85 : x
  2. Step 2: Convert to fraction form
    28,327.13/42,491.59 = 8,605.85/x
  3. Step 3: Cross multiply
    28,327.13x = 42,491.59 × 8,605.85
  4. Step 4: Simplify right side
    28,327.13x = 365,676,334.52
  5. Step 5: Solve for x
    x = 365,676,334.52/28,327.13
  6. Step 6: Final answer
    x = 12,909.05

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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.