Home / 30,279.38-45,419.93-8,092.79

Finding the Fourth Proportional to 30,279.38, 45,419.93 and 8,092.79

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Solution

The fourth proportional to 30,279.38, 45,419.93 and 8,092.79 is: 12,139.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279.38 : 45,419.93 = 8,092.79 : x
  2. Step 2: Convert to fraction form
    30,279.38/45,419.93 = 8,092.79/x
  3. Step 3: Cross multiply
    30,279.38x = 45,419.93 × 8,092.79
  4. Step 4: Simplify right side
    30,279.38x = 367,573,748.44
  5. Step 5: Solve for x
    x = 367,573,748.44/30,279.38
  6. Step 6: Final answer
    x = 12,139.41

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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.