Home / 20,069.61-30,102.03-5,279.68

Finding the Fourth Proportional to 20,069.61, 30,102.03 and 5,279.68

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Solution

The fourth proportional to 20,069.61, 30,102.03 and 5,279.68 is: 7,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.61 : 30,102.03 = 5,279.68 : x
  2. Step 2: Convert to fraction form
    20,069.61/30,102.03 = 5,279.68/x
  3. Step 3: Cross multiply
    20,069.61x = 30,102.03 × 5,279.68
  4. Step 4: Simplify right side
    20,069.61x = 158,929,123.38
  5. Step 5: Solve for x
    x = 158,929,123.38/20,069.61
  6. Step 6: Final answer
    x = 7,918.90

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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.