Home / 20,195.12-30,288.13-7,710.69

Finding the Fourth Proportional to 20,195.12, 30,288.13 and 7,710.69

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Solution

The fourth proportional to 20,195.12, 30,288.13 and 7,710.69 is: 11,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.12 : 30,288.13 = 7,710.69 : x
  2. Step 2: Convert to fraction form
    20,195.12/30,288.13 = 7,710.69/x
  3. Step 3: Cross multiply
    20,195.12x = 30,288.13 × 7,710.69
  4. Step 4: Simplify right side
    20,195.12x = 233,542,475.41
  5. Step 5: Solve for x
    x = 233,542,475.41/20,195.12
  6. Step 6: Final answer
    x = 11,564.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.