Home / 28,279.53-42,401.86-9,557.80

Finding the Fourth Proportional to 28,279.53, 42,401.86 and 9,557.80

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Solution

The fourth proportional to 28,279.53, 42,401.86 and 9,557.80 is: 14,330.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.53 : 42,401.86 = 9,557.80 : x
  2. Step 2: Convert to fraction form
    28,279.53/42,401.86 = 9,557.80/x
  3. Step 3: Cross multiply
    28,279.53x = 42,401.86 × 9,557.80
  4. Step 4: Simplify right side
    28,279.53x = 405,268,367.61
  5. Step 5: Solve for x
    x = 405,268,367.61/28,279.53
  6. Step 6: Final answer
    x = 14,330.80

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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.