Home / 39,758.29-54,865.78-21,852.89

Finding the Fourth Proportional to 39,758.29, 54,865.78 and 21,852.89

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Solution

The fourth proportional to 39,758.29, 54,865.78 and 21,852.89 is: 30,156.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,758.29 : 54,865.78 = 21,852.89 : x
  2. Step 2: Convert to fraction form
    39,758.29/54,865.78 = 21,852.89/x
  3. Step 3: Cross multiply
    39,758.29x = 54,865.78 × 21,852.89
  4. Step 4: Simplify right side
    39,758.29x = 1,198,975,855.10
  5. Step 5: Solve for x
    x = 1,198,975,855.10/39,758.29
  6. Step 6: Final answer
    x = 30,156.63

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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.