Home / 20,301.36-30,445.56-6,447.12

Finding the Fourth Proportional to 20,301.36, 30,445.56 and 6,447.12

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Solution

The fourth proportional to 20,301.36, 30,445.56 and 6,447.12 is: 9,668.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.36 : 30,445.56 = 6,447.12 : x
  2. Step 2: Convert to fraction form
    20,301.36/30,445.56 = 6,447.12/x
  3. Step 3: Cross multiply
    20,301.36x = 30,445.56 × 6,447.12
  4. Step 4: Simplify right side
    20,301.36x = 196,286,178.79
  5. Step 5: Solve for x
    x = 196,286,178.79/20,301.36
  6. Step 6: Final answer
    x = 9,668.62

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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.