Home / 28,279.23-42,411.83-9,558.85

Finding the Fourth Proportional to 28,279.23, 42,411.83 and 9,558.85

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Solution

The fourth proportional to 28,279.23, 42,411.83 and 9,558.85 is: 14,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.23 : 42,411.83 = 9,558.85 : x
  2. Step 2: Convert to fraction form
    28,279.23/42,411.83 = 9,558.85/x
  3. Step 3: Cross multiply
    28,279.23x = 42,411.83 × 9,558.85
  4. Step 4: Simplify right side
    28,279.23x = 405,408,321.20
  5. Step 5: Solve for x
    x = 405,408,321.20/28,279.23
  6. Step 6: Final answer
    x = 14,335.90

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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.