Home / 20,445.07-30,668.29-5,654.11

Finding the Fourth Proportional to 20,445.07, 30,668.29 and 5,654.11

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Solution

The fourth proportional to 20,445.07, 30,668.29 and 5,654.11 is: 8,481.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,445.07 : 30,668.29 = 5,654.11 : x
  2. Step 2: Convert to fraction form
    20,445.07/30,668.29 = 5,654.11/x
  3. Step 3: Cross multiply
    20,445.07x = 30,668.29 × 5,654.11
  4. Step 4: Simplify right side
    20,445.07x = 173,401,856.90
  5. Step 5: Solve for x
    x = 173,401,856.90/20,445.07
  6. Step 6: Final answer
    x = 8,481.35

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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.