Home / 20,471.86-30,708.15-7,333.66

Finding the Fourth Proportional to 20,471.86, 30,708.15 and 7,333.66

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Solution

The fourth proportional to 20,471.86, 30,708.15 and 7,333.66 is: 11,000.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,471.86 : 30,708.15 = 7,333.66 : x
  2. Step 2: Convert to fraction form
    20,471.86/30,708.15 = 7,333.66/x
  3. Step 3: Cross multiply
    20,471.86x = 30,708.15 × 7,333.66
  4. Step 4: Simplify right side
    20,471.86x = 225,203,131.33
  5. Step 5: Solve for x
    x = 225,203,131.33/20,471.86
  6. Step 6: Final answer
    x = 11,000.62

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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.