Home / 20,425.05-30,641.94-7,098.47

Finding the Fourth Proportional to 20,425.05, 30,641.94 and 7,098.47

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Solution

The fourth proportional to 20,425.05, 30,641.94 and 7,098.47 is: 10,649.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,425.05 : 30,641.94 = 7,098.47 : x
  2. Step 2: Convert to fraction form
    20,425.05/30,641.94 = 7,098.47/x
  3. Step 3: Cross multiply
    20,425.05x = 30,641.94 × 7,098.47
  4. Step 4: Simplify right side
    20,425.05x = 217,510,738.62
  5. Step 5: Solve for x
    x = 217,510,738.62/20,425.05
  6. Step 6: Final answer
    x = 10,649.21

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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.