Home / 20,578.24-30,871.67-11,697.66

Finding the Fourth Proportional to 20,578.24, 30,871.67 and 11,697.66

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Solution

The fourth proportional to 20,578.24, 30,871.67 and 11,697.66 is: 17,548.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578.24 : 30,871.67 = 11,697.66 : x
  2. Step 2: Convert to fraction form
    20,578.24/30,871.67 = 11,697.66/x
  3. Step 3: Cross multiply
    20,578.24x = 30,871.67 × 11,697.66
  4. Step 4: Simplify right side
    20,578.24x = 361,126,154.28
  5. Step 5: Solve for x
    x = 361,126,154.28/20,578.24
  6. Step 6: Final answer
    x = 17,548.93

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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.