Home / 28,279.35-42,401.58-9,557.61

Finding the Fourth Proportional to 28,279.35, 42,401.58 and 9,557.61

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Solution

The fourth proportional to 28,279.35, 42,401.58 and 9,557.61 is: 14,330.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.35 : 42,401.58 = 9,557.61 : x
  2. Step 2: Convert to fraction form
    28,279.35/42,401.58 = 9,557.61/x
  3. Step 3: Cross multiply
    28,279.35x = 42,401.58 × 9,557.61
  4. Step 4: Simplify right side
    28,279.35x = 405,257,765.02
  5. Step 5: Solve for x
    x = 405,257,765.02/28,279.35
  6. Step 6: Final answer
    x = 14,330.52

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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.