Home / 20,729.04-31,093.72-7,581.84

Finding the Fourth Proportional to 20,729.04, 31,093.72 and 7,581.84

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Solution

The fourth proportional to 20,729.04, 31,093.72 and 7,581.84 is: 11,372.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,729.04 : 31,093.72 = 7,581.84 : x
  2. Step 2: Convert to fraction form
    20,729.04/31,093.72 = 7,581.84/x
  3. Step 3: Cross multiply
    20,729.04x = 31,093.72 × 7,581.84
  4. Step 4: Simplify right side
    20,729.04x = 235,747,610.04
  5. Step 5: Solve for x
    x = 235,747,610.04/20,729.04
  6. Step 6: Final answer
    x = 11,372.82

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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.