Home / 20,500.51-30,760.49-12,196.93

Finding the Fourth Proportional to 20,500.51, 30,760.49 and 12,196.93

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Solution

The fourth proportional to 20,500.51, 30,760.49 and 12,196.93 is: 18,301.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500.51 : 30,760.49 = 12,196.93 : x
  2. Step 2: Convert to fraction form
    20,500.51/30,760.49 = 12,196.93/x
  3. Step 3: Cross multiply
    20,500.51x = 30,760.49 × 12,196.93
  4. Step 4: Simplify right side
    20,500.51x = 375,183,543.30
  5. Step 5: Solve for x
    x = 375,183,543.30/20,500.51
  6. Step 6: Final answer
    x = 18,301.18

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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.