Home / 20,793.24-28,684.68-15,119.19

Finding the Fourth Proportional to 20,793.24, 28,684.68 and 15,119.19

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Solution

The fourth proportional to 20,793.24, 28,684.68 and 15,119.19 is: 20,857.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793.24 : 28,684.68 = 15,119.19 : x
  2. Step 2: Convert to fraction form
    20,793.24/28,684.68 = 15,119.19/x
  3. Step 3: Cross multiply
    20,793.24x = 28,684.68 × 15,119.19
  4. Step 4: Simplify right side
    20,793.24x = 433,689,127.01
  5. Step 5: Solve for x
    x = 433,689,127.01/20,793.24
  6. Step 6: Final answer
    x = 20,857.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.