Home / 20,589.70-28,392.42-17,615.38

Finding the Fourth Proportional to 20,589.70, 28,392.42 and 17,615.38

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Solution

The fourth proportional to 20,589.70, 28,392.42 and 17,615.38 is: 24,290.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589.70 : 28,392.42 = 17,615.38 : x
  2. Step 2: Convert to fraction form
    20,589.70/28,392.42 = 17,615.38/x
  3. Step 3: Cross multiply
    20,589.70x = 28,392.42 × 17,615.38
  4. Step 4: Simplify right side
    20,589.70x = 500,143,267.42
  5. Step 5: Solve for x
    x = 500,143,267.42/20,589.70
  6. Step 6: Final answer
    x = 24,290.94

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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.