Home / 18,764.24-28,159.17-10,005.30

Finding the Fourth Proportional to 18,764.24, 28,159.17 and 10,005.30

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Solution

The fourth proportional to 18,764.24, 28,159.17 and 10,005.30 is: 15,014.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.24 : 28,159.17 = 10,005.30 : x
  2. Step 2: Convert to fraction form
    18,764.24/28,159.17 = 10,005.30/x
  3. Step 3: Cross multiply
    18,764.24x = 28,159.17 × 10,005.30
  4. Step 4: Simplify right side
    18,764.24x = 281,740,943.60
  5. Step 5: Solve for x
    x = 281,740,943.60/18,764.24
  6. Step 6: Final answer
    x = 15,014.78

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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.