Home / 20,042.69-27,660.96-11,545.13

Finding the Fourth Proportional to 20,042.69, 27,660.96 and 11,545.13

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Solution

The fourth proportional to 20,042.69, 27,660.96 and 11,545.13 is: 15,933.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.69 : 27,660.96 = 11,545.13 : x
  2. Step 2: Convert to fraction form
    20,042.69/27,660.96 = 11,545.13/x
  3. Step 3: Cross multiply
    20,042.69x = 27,660.96 × 11,545.13
  4. Step 4: Simplify right side
    20,042.69x = 319,349,240.82
  5. Step 5: Solve for x
    x = 319,349,240.82/20,042.69
  6. Step 6: Final answer
    x = 15,933.46

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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.