Home / 28,861.66-43,288.16-9,137.66

Finding the Fourth Proportional to 28,861.66, 43,288.16 and 9,137.66

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Solution

The fourth proportional to 28,861.66, 43,288.16 and 9,137.66 is: 13,705.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,861.66 : 43,288.16 = 9,137.66 : x
  2. Step 2: Convert to fraction form
    28,861.66/43,288.16 = 9,137.66/x
  3. Step 3: Cross multiply
    28,861.66x = 43,288.16 × 9,137.66
  4. Step 4: Simplify right side
    28,861.66x = 395,552,488.11
  5. Step 5: Solve for x
    x = 395,552,488.11/28,861.66
  6. Step 6: Final answer
    x = 13,705.12

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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.