Home / 20,737.86-31,110.21-7,608.66

Finding the Fourth Proportional to 20,737.86, 31,110.21 and 7,608.66

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Solution

The fourth proportional to 20,737.86, 31,110.21 and 7,608.66 is: 11,414.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.86 : 31,110.21 = 7,608.66 : x
  2. Step 2: Convert to fraction form
    20,737.86/31,110.21 = 7,608.66/x
  3. Step 3: Cross multiply
    20,737.86x = 31,110.21 × 7,608.66
  4. Step 4: Simplify right side
    20,737.86x = 236,707,010.42
  5. Step 5: Solve for x
    x = 236,707,010.42/20,737.86
  6. Step 6: Final answer
    x = 11,414.24

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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.