Home / 20,121.08-30,213.20-17,041.46

Finding the Fourth Proportional to 20,121.08, 30,213.20 and 17,041.46

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Solution

The fourth proportional to 20,121.08, 30,213.20 and 17,041.46 is: 25,588.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121.08 : 30,213.20 = 17,041.46 : x
  2. Step 2: Convert to fraction form
    20,121.08/30,213.20 = 17,041.46/x
  3. Step 3: Cross multiply
    20,121.08x = 30,213.20 × 17,041.46
  4. Step 4: Simplify right side
    20,121.08x = 514,876,930.81
  5. Step 5: Solve for x
    x = 514,876,930.81/20,121.08
  6. Step 6: Final answer
    x = 25,588.94

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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.