Home / 19,002.20-28,503.29-5,151.20

Finding the Fourth Proportional to 19,002.20, 28,503.29 and 5,151.20

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Solution

The fourth proportional to 19,002.20, 28,503.29 and 5,151.20 is: 7,726.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,002.20 : 28,503.29 = 5,151.20 : x
  2. Step 2: Convert to fraction form
    19,002.20/28,503.29 = 5,151.20/x
  3. Step 3: Cross multiply
    19,002.20x = 28,503.29 × 5,151.20
  4. Step 4: Simplify right side
    19,002.20x = 146,825,979.18
  5. Step 5: Solve for x
    x = 146,825,979.18/19,002.20
  6. Step 6: Final answer
    x = 7,726.79

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1.5x scale

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.