Home / 19,151.78-28,751.15-15,018.08

Finding the Fourth Proportional to 19,151.78, 28,751.15 and 15,018.08

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Solution

The fourth proportional to 19,151.78, 28,751.15 and 15,018.08 is: 22,545.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151.78 : 28,751.15 = 15,018.08 : x
  2. Step 2: Convert to fraction form
    19,151.78/28,751.15 = 15,018.08/x
  3. Step 3: Cross multiply
    19,151.78x = 28,751.15 × 15,018.08
  4. Step 4: Simplify right side
    19,151.78x = 431,786,964.58
  5. Step 5: Solve for x
    x = 431,786,964.58/19,151.78
  6. Step 6: Final answer
    x = 22,545.53

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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.