Home / 36,679.20-55,013.40-10,386.60

Finding the Fourth Proportional to 36,679.20, 55,013.40 and 10,386.60

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Solution

The fourth proportional to 36,679.20, 55,013.40 and 10,386.60 is: 15,578.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,679.20 : 55,013.40 = 10,386.60 : x
  2. Step 2: Convert to fraction form
    36,679.20/55,013.40 = 10,386.60/x
  3. Step 3: Cross multiply
    36,679.20x = 55,013.40 × 10,386.60
  4. Step 4: Simplify right side
    36,679.20x = 571,402,180.44
  5. Step 5: Solve for x
    x = 571,402,180.44/36,679.20
  6. Step 6: Final answer
    x = 15,578.37

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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.