Home / 20,337.47-30,515.17-7,012.49

Finding the Fourth Proportional to 20,337.47, 30,515.17 and 7,012.49

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Solution

The fourth proportional to 20,337.47, 30,515.17 and 7,012.49 is: 10,521.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.47 : 30,515.17 = 7,012.49 : x
  2. Step 2: Convert to fraction form
    20,337.47/30,515.17 = 7,012.49/x
  3. Step 3: Cross multiply
    20,337.47x = 30,515.17 × 7,012.49
  4. Step 4: Simplify right side
    20,337.47x = 213,987,324.47
  5. Step 5: Solve for x
    x = 213,987,324.47/20,337.47
  6. Step 6: Final answer
    x = 10,521.83

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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.