Home / 30,251.36-45,371.03-28,751.10

Finding the Fourth Proportional to 30,251.36, 45,371.03 and 28,751.10

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Solution

The fourth proportional to 30,251.36, 45,371.03 and 28,751.10 is: 43,120.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,251.36 : 45,371.03 = 28,751.10 : x
  2. Step 2: Convert to fraction form
    30,251.36/45,371.03 = 28,751.10/x
  3. Step 3: Cross multiply
    30,251.36x = 45,371.03 × 28,751.10
  4. Step 4: Simplify right side
    30,251.36x = 1,304,466,876.88
  5. Step 5: Solve for x
    x = 1,304,466,876.88/30,251.36
  6. Step 6: Final answer
    x = 43,120.94

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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.