Home / 20,707.38-28,576.29-12,324.18

Finding the Fourth Proportional to 20,707.38, 28,576.29 and 12,324.18

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Solution

The fourth proportional to 20,707.38, 28,576.29 and 12,324.18 is: 17,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.38 : 28,576.29 = 12,324.18 : x
  2. Step 2: Convert to fraction form
    20,707.38/28,576.29 = 12,324.18/x
  3. Step 3: Cross multiply
    20,707.38x = 28,576.29 × 12,324.18
  4. Step 4: Simplify right side
    20,707.38x = 352,179,341.69
  5. Step 5: Solve for x
    x = 352,179,341.69/20,707.38
  6. Step 6: Final answer
    x = 17,007.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.