Home / 28,876.10-43,330.35-12,233.30

Finding the Fourth Proportional to 28,876.10, 43,330.35 and 12,233.30

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Solution

The fourth proportional to 28,876.10, 43,330.35 and 12,233.30 is: 18,356.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,876.10 : 43,330.35 = 12,233.30 : x
  2. Step 2: Convert to fraction form
    28,876.10/43,330.35 = 12,233.30/x
  3. Step 3: Cross multiply
    28,876.10x = 43,330.35 × 12,233.30
  4. Step 4: Simplify right side
    28,876.10x = 530,073,170.66
  5. Step 5: Solve for x
    x = 530,073,170.66/28,876.10
  6. Step 6: Final answer
    x = 18,356.81

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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.