Home / 31,869.18-43,961.54-19,118.97

Finding the Fourth Proportional to 31,869.18, 43,961.54 and 19,118.97

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Solution

The fourth proportional to 31,869.18, 43,961.54 and 19,118.97 is: 26,373.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,869.18 : 43,961.54 = 19,118.97 : x
  2. Step 2: Convert to fraction form
    31,869.18/43,961.54 = 19,118.97/x
  3. Step 3: Cross multiply
    31,869.18x = 43,961.54 × 19,118.97
  4. Step 4: Simplify right side
    31,869.18x = 840,499,268.82
  5. Step 5: Solve for x
    x = 840,499,268.82/31,869.18
  6. Step 6: Final answer
    x = 26,373.42

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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.