Home / 18,769.02-28,129.57-10,329.96

Finding the Fourth Proportional to 18,769.02, 28,129.57 and 10,329.96

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Solution

The fourth proportional to 18,769.02, 28,129.57 and 10,329.96 is: 15,481.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.02 : 28,129.57 = 10,329.96 : x
  2. Step 2: Convert to fraction form
    18,769.02/28,129.57 = 10,329.96/x
  3. Step 3: Cross multiply
    18,769.02x = 28,129.57 × 10,329.96
  4. Step 4: Simplify right side
    18,769.02x = 290,577,332.92
  5. Step 5: Solve for x
    x = 290,577,332.92/18,769.02
  6. Step 6: Final answer
    x = 15,481.75

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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.