Home / 20,661.39-30,974.79-9,576.01

Finding the Fourth Proportional to 20,661.39, 30,974.79 and 9,576.01

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Solution

The fourth proportional to 20,661.39, 30,974.79 and 9,576.01 is: 14,356.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,661.39 : 30,974.79 = 9,576.01 : x
  2. Step 2: Convert to fraction form
    20,661.39/30,974.79 = 9,576.01/x
  3. Step 3: Cross multiply
    20,661.39x = 30,974.79 × 9,576.01
  4. Step 4: Simplify right side
    20,661.39x = 296,614,898.79
  5. Step 5: Solve for x
    x = 296,614,898.79/20,661.39
  6. Step 6: Final answer
    x = 14,356.00

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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.