Home / 35,786.85-49,387.10-19,871.57

Finding the Fourth Proportional to 35,786.85, 49,387.10 and 19,871.57

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Solution

The fourth proportional to 35,786.85, 49,387.10 and 19,871.57 is: 27,423.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,786.85 : 49,387.10 = 19,871.57 : x
  2. Step 2: Convert to fraction form
    35,786.85/49,387.10 = 19,871.57/x
  3. Step 3: Cross multiply
    35,786.85x = 49,387.10 × 19,871.57
  4. Step 4: Simplify right side
    35,786.85x = 981,398,868.45
  5. Step 5: Solve for x
    x = 981,398,868.45/35,786.85
  6. Step 6: Final answer
    x = 27,423.45

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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.