Home / 20,031.70-30,045.26-5,242.04

Finding the Fourth Proportional to 20,031.70, 30,045.26 and 5,242.04

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Solution

The fourth proportional to 20,031.70, 30,045.26 and 5,242.04 is: 7,862.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.70 : 30,045.26 = 5,242.04 : x
  2. Step 2: Convert to fraction form
    20,031.70/30,045.26 = 5,242.04/x
  3. Step 3: Cross multiply
    20,031.70x = 30,045.26 × 5,242.04
  4. Step 4: Simplify right side
    20,031.70x = 157,498,454.73
  5. Step 5: Solve for x
    x = 157,498,454.73/20,031.70
  6. Step 6: Final answer
    x = 7,862.46

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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.