Home / 20,358.02-30,540.33-7,207.53

Finding the Fourth Proportional to 20,358.02, 30,540.33 and 7,207.53

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Solution

The fourth proportional to 20,358.02, 30,540.33 and 7,207.53 is: 10,812.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.02 : 30,540.33 = 7,207.53 : x
  2. Step 2: Convert to fraction form
    20,358.02/30,540.33 = 7,207.53/x
  3. Step 3: Cross multiply
    20,358.02x = 30,540.33 × 7,207.53
  4. Step 4: Simplify right side
    20,358.02x = 220,120,344.68
  5. Step 5: Solve for x
    x = 220,120,344.68/20,358.02
  6. Step 6: Final answer
    x = 10,812.47

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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.