Home / 30,194.28-45,273.72-9,128.04

Finding the Fourth Proportional to 30,194.28, 45,273.72 and 9,128.04

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Solution

The fourth proportional to 30,194.28, 45,273.72 and 9,128.04 is: 13,686.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,194.28 : 45,273.72 = 9,128.04 : x
  2. Step 2: Convert to fraction form
    30,194.28/45,273.72 = 9,128.04/x
  3. Step 3: Cross multiply
    30,194.28x = 45,273.72 × 9,128.04
  4. Step 4: Simplify right side
    30,194.28x = 413,260,327.11
  5. Step 5: Solve for x
    x = 413,260,327.11/30,194.28
  6. Step 6: Final answer
    x = 13,686.71

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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.