Home / 31,281.97-43,169.13-17,135.05

Finding the Fourth Proportional to 31,281.97, 43,169.13 and 17,135.05

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Solution

The fourth proportional to 31,281.97, 43,169.13 and 17,135.05 is: 23,646.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,281.97 : 43,169.13 = 17,135.05 : x
  2. Step 2: Convert to fraction form
    31,281.97/43,169.13 = 17,135.05/x
  3. Step 3: Cross multiply
    31,281.97x = 43,169.13 × 17,135.05
  4. Step 4: Simplify right side
    31,281.97x = 739,704,985.16
  5. Step 5: Solve for x
    x = 739,704,985.16/31,281.97
  6. Step 6: Final answer
    x = 23,646.37

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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.