Home / 31,311.69-43,209.79-17,164.45

Finding the Fourth Proportional to 31,311.69, 43,209.79 and 17,164.45

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Solution

The fourth proportional to 31,311.69, 43,209.79 and 17,164.45 is: 23,686.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,311.69 : 43,209.79 = 17,164.45 : x
  2. Step 2: Convert to fraction form
    31,311.69/43,209.79 = 17,164.45/x
  3. Step 3: Cross multiply
    31,311.69x = 43,209.79 × 17,164.45
  4. Step 4: Simplify right side
    31,311.69x = 741,672,279.97
  5. Step 5: Solve for x
    x = 741,672,279.97/31,311.69
  6. Step 6: Final answer
    x = 23,686.75

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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.