Home / 20,432.58-30,589.38-15,190.80

Finding the Fourth Proportional to 20,432.58, 30,589.38 and 15,190.80

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Solution

The fourth proportional to 20,432.58, 30,589.38 and 15,190.80 is: 22,741.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,432.58 : 30,589.38 = 15,190.80 : x
  2. Step 2: Convert to fraction form
    20,432.58/30,589.38 = 15,190.80/x
  3. Step 3: Cross multiply
    20,432.58x = 30,589.38 × 15,190.80
  4. Step 4: Simplify right side
    20,432.58x = 464,677,153.70
  5. Step 5: Solve for x
    x = 464,677,153.70/20,432.58
  6. Step 6: Final answer
    x = 22,741.97

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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.