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Finding the Fourth Proportional to 20,199.76, 30,301.08 and 6,358.48

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Solution

The fourth proportional to 20,199.76, 30,301.08 and 6,358.48 is: 9,538.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199.76 : 30,301.08 = 6,358.48 : x
  2. Step 2: Convert to fraction form
    20,199.76/30,301.08 = 6,358.48/x
  3. Step 3: Cross multiply
    20,199.76x = 30,301.08 × 6,358.48
  4. Step 4: Simplify right side
    20,199.76x = 192,668,811.16
  5. Step 5: Solve for x
    x = 192,668,811.16/20,199.76
  6. Step 6: Final answer
    x = 9,538.17

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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.