Home / 31,452.66-43,386.23-20,118.02

Finding the Fourth Proportional to 31,452.66, 43,386.23 and 20,118.02

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Solution

The fourth proportional to 31,452.66, 43,386.23 and 20,118.02 is: 27,751.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,452.66 : 43,386.23 = 20,118.02 : x
  2. Step 2: Convert to fraction form
    31,452.66/43,386.23 = 20,118.02/x
  3. Step 3: Cross multiply
    31,452.66x = 43,386.23 × 20,118.02
  4. Step 4: Simplify right side
    31,452.66x = 872,845,042.86
  5. Step 5: Solve for x
    x = 872,845,042.86/31,452.66
  6. Step 6: Final answer
    x = 27,751.07

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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.