Home / 26,879.90-40,318.66-7,158.48

Finding the Fourth Proportional to 26,879.90, 40,318.66 and 7,158.48

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Solution

The fourth proportional to 26,879.90, 40,318.66 and 7,158.48 is: 10,737.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,879.90 : 40,318.66 = 7,158.48 : x
  2. Step 2: Convert to fraction form
    26,879.90/40,318.66 = 7,158.48/x
  3. Step 3: Cross multiply
    26,879.90x = 40,318.66 × 7,158.48
  4. Step 4: Simplify right side
    26,879.90x = 288,620,178.99
  5. Step 5: Solve for x
    x = 288,620,178.99/26,879.90
  6. Step 6: Final answer
    x = 10,737.40

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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.