Home / 20,850.06-31,278.33-7,002.30

Finding the Fourth Proportional to 20,850.06, 31,278.33 and 7,002.30

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Solution

The fourth proportional to 20,850.06, 31,278.33 and 7,002.30 is: 10,504.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.06 : 31,278.33 = 7,002.30 : x
  2. Step 2: Convert to fraction form
    20,850.06/31,278.33 = 7,002.30/x
  3. Step 3: Cross multiply
    20,850.06x = 31,278.33 × 7,002.30
  4. Step 4: Simplify right side
    20,850.06x = 219,020,250.16
  5. Step 5: Solve for x
    x = 219,020,250.16/20,850.06
  6. Step 6: Final answer
    x = 10,504.54

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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.