Home / 30,174.20-45,243.12-13,531.22

Finding the Fourth Proportional to 30,174.20, 45,243.12 and 13,531.22

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Solution

The fourth proportional to 30,174.20, 45,243.12 and 13,531.22 is: 20,288.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,174.20 : 45,243.12 = 13,531.22 : x
  2. Step 2: Convert to fraction form
    30,174.20/45,243.12 = 13,531.22/x
  3. Step 3: Cross multiply
    30,174.20x = 45,243.12 × 13,531.22
  4. Step 4: Simplify right side
    30,174.20x = 612,194,610.21
  5. Step 5: Solve for x
    x = 612,194,610.21/30,174.20
  6. Step 6: Final answer
    x = 20,288.68

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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.