Home / 28,249.16-42,377.85-8,529.30

Finding the Fourth Proportional to 28,249.16, 42,377.85 and 8,529.30

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Solution

The fourth proportional to 28,249.16, 42,377.85 and 8,529.30 is: 12,795.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.16 : 42,377.85 = 8,529.30 : x
  2. Step 2: Convert to fraction form
    28,249.16/42,377.85 = 8,529.30/x
  3. Step 3: Cross multiply
    28,249.16x = 42,377.85 × 8,529.30
  4. Step 4: Simplify right side
    28,249.16x = 361,453,396.01
  5. Step 5: Solve for x
    x = 361,453,396.01/28,249.16
  6. Step 6: Final answer
    x = 12,795.19

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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.