Home / 20,433.60-30,590.88-15,191.80

Finding the Fourth Proportional to 20,433.60, 30,590.88 and 15,191.80

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Solution

The fourth proportional to 20,433.60, 30,590.88 and 15,191.80 is: 22,743.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433.60 : 30,590.88 = 15,191.80 : x
  2. Step 2: Convert to fraction form
    20,433.60/30,590.88 = 15,191.80/x
  3. Step 3: Cross multiply
    20,433.60x = 30,590.88 × 15,191.80
  4. Step 4: Simplify right side
    20,433.60x = 464,730,530.78
  5. Step 5: Solve for x
    x = 464,730,530.78/20,433.60
  6. Step 6: Final answer
    x = 22,743.45

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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.