Home / 31,387.07-43,306.71-17,775.29

Finding the Fourth Proportional to 31,387.07, 43,306.71 and 17,775.29

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Solution

The fourth proportional to 31,387.07, 43,306.71 and 17,775.29 is: 24,525.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,387.07 : 43,306.71 = 17,775.29 : x
  2. Step 2: Convert to fraction form
    31,387.07/43,306.71 = 17,775.29/x
  3. Step 3: Cross multiply
    31,387.07x = 43,306.71 × 17,775.29
  4. Step 4: Simplify right side
    31,387.07x = 769,789,329.20
  5. Step 5: Solve for x
    x = 769,789,329.20/31,387.07
  6. Step 6: Final answer
    x = 24,525.68

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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.