Home / 18,739.65-28,101.24-9,972.48

Finding the Fourth Proportional to 18,739.65, 28,101.24 and 9,972.48

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Solution

The fourth proportional to 18,739.65, 28,101.24 and 9,972.48 is: 14,954.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.65 : 28,101.24 = 9,972.48 : x
  2. Step 2: Convert to fraction form
    18,739.65/28,101.24 = 9,972.48/x
  3. Step 3: Cross multiply
    18,739.65x = 28,101.24 × 9,972.48
  4. Step 4: Simplify right side
    18,739.65x = 280,239,053.88
  5. Step 5: Solve for x
    x = 280,239,053.88/18,739.65
  6. Step 6: Final answer
    x = 14,954.34

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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.