Home / 27,921.54-38,540.71-17,877.04

Finding the Fourth Proportional to 27,921.54, 38,540.71 and 17,877.04

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Solution

The fourth proportional to 27,921.54, 38,540.71 and 17,877.04 is: 24,676.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.54 : 38,540.71 = 17,877.04 : x
  2. Step 2: Convert to fraction form
    27,921.54/38,540.71 = 17,877.04/x
  3. Step 3: Cross multiply
    27,921.54x = 38,540.71 × 17,877.04
  4. Step 4: Simplify right side
    27,921.54x = 688,993,814.30
  5. Step 5: Solve for x
    x = 688,993,814.30/27,921.54
  6. Step 6: Final answer
    x = 24,676.07

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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.