Home / 20,424.55-30,641.19-7,097.97

Finding the Fourth Proportional to 20,424.55, 30,641.19 and 7,097.97

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Solution

The fourth proportional to 20,424.55, 30,641.19 and 7,097.97 is: 10,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.55 : 30,641.19 = 7,097.97 : x
  2. Step 2: Convert to fraction form
    20,424.55/30,641.19 = 7,097.97/x
  3. Step 3: Cross multiply
    20,424.55x = 30,641.19 × 7,097.97
  4. Step 4: Simplify right side
    20,424.55x = 217,490,247.38
  5. Step 5: Solve for x
    x = 217,490,247.38/20,424.55
  6. Step 6: Final answer
    x = 10,648.47

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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.