Home / 20,724.75-31,073.76-7,576.02

Finding the Fourth Proportional to 20,724.75, 31,073.76 and 7,576.02

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Solution

The fourth proportional to 20,724.75, 31,073.76 and 7,576.02 is: 11,359.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.75 : 31,073.76 = 7,576.02 : x
  2. Step 2: Convert to fraction form
    20,724.75/31,073.76 = 7,576.02/x
  3. Step 3: Cross multiply
    20,724.75x = 31,073.76 × 7,576.02
  4. Step 4: Simplify right side
    20,724.75x = 235,415,427.24
  5. Step 5: Solve for x
    x = 235,415,427.24/20,724.75
  6. Step 6: Final answer
    x = 11,359.14

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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.