Home / 22,979.54-31,687.73-18,191.83

Finding the Fourth Proportional to 22,979.54, 31,687.73 and 18,191.83

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Solution

The fourth proportional to 22,979.54, 31,687.73 and 18,191.83 is: 25,085.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,979.54 : 31,687.73 = 18,191.83 : x
  2. Step 2: Convert to fraction form
    22,979.54/31,687.73 = 18,191.83/x
  3. Step 3: Cross multiply
    22,979.54x = 31,687.73 × 18,191.83
  4. Step 4: Simplify right side
    22,979.54x = 576,457,797.25
  5. Step 5: Solve for x
    x = 576,457,797.25/22,979.54
  6. Step 6: Final answer
    x = 25,085.70

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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.