Home / 31,287.43-43,177.75-17,140.27

Finding the Fourth Proportional to 31,287.43, 43,177.75 and 17,140.27

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Solution

The fourth proportional to 31,287.43, 43,177.75 and 17,140.27 is: 23,654.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.43 : 43,177.75 = 17,140.27 : x
  2. Step 2: Convert to fraction form
    31,287.43/43,177.75 = 17,140.27/x
  3. Step 3: Cross multiply
    31,287.43x = 43,177.75 × 17,140.27
  4. Step 4: Simplify right side
    31,287.43x = 740,078,443.79
  5. Step 5: Solve for x
    x = 740,078,443.79/31,287.43
  6. Step 6: Final answer
    x = 23,654.18

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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.