Home / 17,001.42-23,371.22-15,189.90

Finding the Fourth Proportional to 17,001.42, 23,371.22 and 15,189.90

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Solution

The fourth proportional to 17,001.42, 23,371.22 and 15,189.90 is: 20,880.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,001.42 : 23,371.22 = 15,189.90 : x
  2. Step 2: Convert to fraction form
    17,001.42/23,371.22 = 15,189.90/x
  3. Step 3: Cross multiply
    17,001.42x = 23,371.22 × 15,189.90
  4. Step 4: Simplify right side
    17,001.42x = 355,006,418.73
  5. Step 5: Solve for x
    x = 355,006,418.73/17,001.42
  6. Step 6: Final answer
    x = 20,880.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.