Home / 30,132.48-45,201.92-9,072.64

Finding the Fourth Proportional to 30,132.48, 45,201.92 and 9,072.64

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Solution

The fourth proportional to 30,132.48, 45,201.92 and 9,072.64 is: 13,609.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,132.48 : 45,201.92 = 9,072.64 : x
  2. Step 2: Convert to fraction form
    30,132.48/45,201.92 = 9,072.64/x
  3. Step 3: Cross multiply
    30,132.48x = 45,201.92 × 9,072.64
  4. Step 4: Simplify right side
    30,132.48x = 410,100,747.47
  5. Step 5: Solve for x
    x = 410,100,747.47/30,132.48
  6. Step 6: Final answer
    x = 13,609.92

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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.