Home / 31,436.47-43,383.15-17,289.68

Finding the Fourth Proportional to 31,436.47, 43,383.15 and 17,289.68

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Solution

The fourth proportional to 31,436.47, 43,383.15 and 17,289.68 is: 23,860.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.47 : 43,383.15 = 17,289.68 : x
  2. Step 2: Convert to fraction form
    31,436.47/43,383.15 = 17,289.68/x
  3. Step 3: Cross multiply
    31,436.47x = 43,383.15 × 17,289.68
  4. Step 4: Simplify right side
    31,436.47x = 750,080,694.44
  5. Step 5: Solve for x
    x = 750,080,694.44/31,436.47
  6. Step 6: Final answer
    x = 23,860.21

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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.