Home / 35,780.79-49,377.60-19,865.28

Finding the Fourth Proportional to 35,780.79, 49,377.60 and 19,865.28

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Solution

The fourth proportional to 35,780.79, 49,377.60 and 19,865.28 is: 27,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,780.79 : 49,377.60 = 19,865.28 : x
  2. Step 2: Convert to fraction form
    35,780.79/49,377.60 = 19,865.28/x
  3. Step 3: Cross multiply
    35,780.79x = 49,377.60 × 19,865.28
  4. Step 4: Simplify right side
    35,780.79x = 980,899,849.73
  5. Step 5: Solve for x
    x = 980,899,849.73/35,780.79
  6. Step 6: Final answer
    x = 27,414.15

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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.