Home / 19,150.38-28,726.80-5,110.20

Finding the Fourth Proportional to 19,150.38, 28,726.80 and 5,110.20

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Solution

The fourth proportional to 19,150.38, 28,726.80 and 5,110.20 is: 7,665.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,150.38 : 28,726.80 = 5,110.20 : x
  2. Step 2: Convert to fraction form
    19,150.38/28,726.80 = 5,110.20/x
  3. Step 3: Cross multiply
    19,150.38x = 28,726.80 × 5,110.20
  4. Step 4: Simplify right side
    19,150.38x = 146,799,693.36
  5. Step 5: Solve for x
    x = 146,799,693.36/19,150.38
  6. Step 6: Final answer
    x = 7,665.63

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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.