Home / 31,418.78-43,358.06-17,272.53

Finding the Fourth Proportional to 31,418.78, 43,358.06 and 17,272.53

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Solution

The fourth proportional to 31,418.78, 43,358.06 and 17,272.53 is: 23,836.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.78 : 43,358.06 = 17,272.53 : x
  2. Step 2: Convert to fraction form
    31,418.78/43,358.06 = 17,272.53/x
  3. Step 3: Cross multiply
    31,418.78x = 43,358.06 × 17,272.53
  4. Step 4: Simplify right side
    31,418.78x = 748,903,435.27
  5. Step 5: Solve for x
    x = 748,903,435.27/31,418.78
  6. Step 6: Final answer
    x = 23,836.18

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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.