Home / 31,287.20-43,176.48-17,140

Finding the Fourth Proportional to 31,287.20, 43,176.48 and 17,140

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Solution

The fourth proportional to 31,287.20, 43,176.48 and 17,140 is: 23,653.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.20 : 43,176.48 = 17,140 : x
  2. Step 2: Convert to fraction form
    31,287.20/43,176.48 = 17,140/x
  3. Step 3: Cross multiply
    31,287.20x = 43,176.48 × 17,140
  4. Step 4: Simplify right side
    31,287.20x = 740,044,867.20
  5. Step 5: Solve for x
    x = 740,044,867.20/31,287.20
  6. Step 6: Final answer
    x = 23,653.28

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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.