Home / 31,311.81-43,209.97-17,164.58

Finding the Fourth Proportional to 31,311.81, 43,209.97 and 17,164.58

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Solution

The fourth proportional to 31,311.81, 43,209.97 and 17,164.58 is: 23,686.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,311.81 : 43,209.97 = 17,164.58 : x
  2. Step 2: Convert to fraction form
    31,311.81/43,209.97 = 17,164.58/x
  3. Step 3: Cross multiply
    31,311.81x = 43,209.97 × 17,164.58
  4. Step 4: Simplify right side
    31,311.81x = 741,680,727.90
  5. Step 5: Solve for x
    x = 741,680,727.90/31,311.81
  6. Step 6: Final answer
    x = 23,686.93

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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.