Home / 35,787.13-49,387.48-19,871.85

Finding the Fourth Proportional to 35,787.13, 49,387.48 and 19,871.85

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Solution

The fourth proportional to 35,787.13, 49,387.48 and 19,871.85 is: 27,423.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,787.13 : 49,387.48 = 19,871.85 : x
  2. Step 2: Convert to fraction form
    35,787.13/49,387.48 = 19,871.85/x
  3. Step 3: Cross multiply
    35,787.13x = 49,387.48 × 19,871.85
  4. Step 4: Simplify right side
    35,787.13x = 981,420,471.33
  5. Step 5: Solve for x
    x = 981,420,471.33/35,787.13
  6. Step 6: Final answer
    x = 27,423.84

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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.