Home / 31,788.33-43,869.69-19,217.13

Finding the Fourth Proportional to 31,788.33, 43,869.69 and 19,217.13

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Solution

The fourth proportional to 31,788.33, 43,869.69 and 19,217.13 is: 26,520.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788.33 : 43,869.69 = 19,217.13 : x
  2. Step 2: Convert to fraction form
    31,788.33/43,869.69 = 19,217.13/x
  3. Step 3: Cross multiply
    31,788.33x = 43,869.69 × 19,217.13
  4. Step 4: Simplify right side
    31,788.33x = 843,049,535.79
  5. Step 5: Solve for x
    x = 843,049,535.79/31,788.33
  6. Step 6: Final answer
    x = 26,520.72

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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.