Home / 20,472.33-28,251.93-11,519.98

Finding the Fourth Proportional to 20,472.33, 28,251.93 and 11,519.98

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Solution

The fourth proportional to 20,472.33, 28,251.93 and 11,519.98 is: 15,897.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,472.33 : 28,251.93 = 11,519.98 : x
  2. Step 2: Convert to fraction form
    20,472.33/28,251.93 = 11,519.98/x
  3. Step 3: Cross multiply
    20,472.33x = 28,251.93 × 11,519.98
  4. Step 4: Simplify right side
    20,472.33x = 325,461,668.56
  5. Step 5: Solve for x
    x = 325,461,668.56/20,472.33
  6. Step 6: Final answer
    x = 15,897.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.