Home / 31,434.60-43,380.56-17,287.80

Finding the Fourth Proportional to 31,434.60, 43,380.56 and 17,287.80

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Solution

The fourth proportional to 31,434.60, 43,380.56 and 17,287.80 is: 23,857.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,434.60 : 43,380.56 = 17,287.80 : x
  2. Step 2: Convert to fraction form
    31,434.60/43,380.56 = 17,287.80/x
  3. Step 3: Cross multiply
    31,434.60x = 43,380.56 × 17,287.80
  4. Step 4: Simplify right side
    31,434.60x = 749,954,445.17
  5. Step 5: Solve for x
    x = 749,954,445.17/31,434.60
  6. Step 6: Final answer
    x = 23,857.61

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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.