Home / 20,064.89-27,689.17-11,112.47

Finding the Fourth Proportional to 20,064.89, 27,689.17 and 11,112.47

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Solution

The fourth proportional to 20,064.89, 27,689.17 and 11,112.47 is: 15,334.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,064.89 : 27,689.17 = 11,112.47 : x
  2. Step 2: Convert to fraction form
    20,064.89/27,689.17 = 11,112.47/x
  3. Step 3: Cross multiply
    20,064.89x = 27,689.17 × 11,112.47
  4. Step 4: Simplify right side
    20,064.89x = 307,694,920.26
  5. Step 5: Solve for x
    x = 307,694,920.26/20,064.89
  6. Step 6: Final answer
    x = 15,334.99

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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.