Home / 27,921.89-38,541.19-17,877.38

Finding the Fourth Proportional to 27,921.89, 38,541.19 and 17,877.38

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Solution

The fourth proportional to 27,921.89, 38,541.19 and 17,877.38 is: 24,676.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.89 : 38,541.19 = 17,877.38 : x
  2. Step 2: Convert to fraction form
    27,921.89/38,541.19 = 17,877.38/x
  3. Step 3: Cross multiply
    27,921.89x = 38,541.19 × 17,877.38
  4. Step 4: Simplify right side
    27,921.89x = 689,015,499.28
  5. Step 5: Solve for x
    x = 689,015,499.28/27,921.89
  6. Step 6: Final answer
    x = 24,676.54

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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.