Home / 27,869.40-38,438.19-19,371.33

Finding the Fourth Proportional to 27,869.40, 38,438.19 and 19,371.33

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Solution

The fourth proportional to 27,869.40, 38,438.19 and 19,371.33 is: 26,717.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,869.40 : 38,438.19 = 19,371.33 : x
  2. Step 2: Convert to fraction form
    27,869.40/38,438.19 = 19,371.33/x
  3. Step 3: Cross multiply
    27,869.40x = 38,438.19 × 19,371.33
  4. Step 4: Simplify right side
    27,869.40x = 744,598,863.09
  5. Step 5: Solve for x
    x = 744,598,863.09/27,869.40
  6. Step 6: Final answer
    x = 26,717.43

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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.