Home / 22,640.36-31,243.12-12,568.47

Finding the Fourth Proportional to 22,640.36, 31,243.12 and 12,568.47

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Solution

The fourth proportional to 22,640.36, 31,243.12 and 12,568.47 is: 17,344.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,640.36 : 31,243.12 = 12,568.47 : x
  2. Step 2: Convert to fraction form
    22,640.36/31,243.12 = 12,568.47/x
  3. Step 3: Cross multiply
    22,640.36x = 31,243.12 × 12,568.47
  4. Step 4: Simplify right side
    22,640.36x = 392,678,067.84
  5. Step 5: Solve for x
    x = 392,678,067.84/22,640.36
  6. Step 6: Final answer
    x = 17,344.16

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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.