Home / 20,589.86-28,392.79-17,615.54

Finding the Fourth Proportional to 20,589.86, 28,392.79 and 17,615.54

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Solution

The fourth proportional to 20,589.86, 28,392.79 and 17,615.54 is: 24,291.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,589.86 : 28,392.79 = 17,615.54 : x
  2. Step 2: Convert to fraction form
    20,589.86/28,392.79 = 17,615.54/x
  3. Step 3: Cross multiply
    20,589.86x = 28,392.79 × 17,615.54
  4. Step 4: Simplify right side
    20,589.86x = 500,154,292.47
  5. Step 5: Solve for x
    x = 500,154,292.47/20,589.86
  6. Step 6: Final answer
    x = 24,291.29

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Similar ratio
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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.