Home / 28,327.70-42,490.20-9,605.90

Finding the Fourth Proportional to 28,327.70, 42,490.20 and 9,605.90

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Solution

The fourth proportional to 28,327.70, 42,490.20 and 9,605.90 is: 14,408.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.70 : 42,490.20 = 9,605.90 : x
  2. Step 2: Convert to fraction form
    28,327.70/42,490.20 = 9,605.90/x
  3. Step 3: Cross multiply
    28,327.70x = 42,490.20 × 9,605.90
  4. Step 4: Simplify right side
    28,327.70x = 408,156,612.18
  5. Step 5: Solve for x
    x = 408,156,612.18/28,327.70
  6. Step 6: Final answer
    x = 14,408.39

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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.