Home / 20,224.89-30,351.01-7,077.38

Finding the Fourth Proportional to 20,224.89, 30,351.01 and 7,077.38

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Solution

The fourth proportional to 20,224.89, 30,351.01 and 7,077.38 is: 10,620.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.89 : 30,351.01 = 7,077.38 : x
  2. Step 2: Convert to fraction form
    20,224.89/30,351.01 = 7,077.38/x
  3. Step 3: Cross multiply
    20,224.89x = 30,351.01 × 7,077.38
  4. Step 4: Simplify right side
    20,224.89x = 214,805,479.40
  5. Step 5: Solve for x
    x = 214,805,479.40/20,224.89
  6. Step 6: Final answer
    x = 10,620.85

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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.