Home / 30,213.10-45,301.92-9,146.80

Finding the Fourth Proportional to 30,213.10, 45,301.92 and 9,146.80

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Solution

The fourth proportional to 30,213.10, 45,301.92 and 9,146.80 is: 13,714.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,213.10 : 45,301.92 = 9,146.80 : x
  2. Step 2: Convert to fraction form
    30,213.10/45,301.92 = 9,146.80/x
  3. Step 3: Cross multiply
    30,213.10x = 45,301.92 × 9,146.80
  4. Step 4: Simplify right side
    30,213.10x = 414,367,601.86
  5. Step 5: Solve for x
    x = 414,367,601.86/30,213.10
  6. Step 6: Final answer
    x = 13,714.83

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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.