Home / 28,310.60-42,437.10-16,617.80

Finding the Fourth Proportional to 28,310.60, 42,437.10 and 16,617.80

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Solution

The fourth proportional to 28,310.60, 42,437.10 and 16,617.80 is: 24,909.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.60 : 42,437.10 = 16,617.80 : x
  2. Step 2: Convert to fraction form
    28,310.60/42,437.10 = 16,617.80/x
  3. Step 3: Cross multiply
    28,310.60x = 42,437.10 × 16,617.80
  4. Step 4: Simplify right side
    28,310.60x = 705,211,240.38
  5. Step 5: Solve for x
    x = 705,211,240.38/28,310.60
  6. Step 6: Final answer
    x = 24,909.79

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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.