Home / 39,763.00-54,871.80-21,855.54

Finding the Fourth Proportional to 39,763.00, 54,871.80 and 21,855.54

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Solution

The fourth proportional to 39,763.00, 54,871.80 and 21,855.54 is: 30,160.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,763.00 : 54,871.80 = 21,855.54 : x
  2. Step 2: Convert to fraction form
    39,763.00/54,871.80 = 21,855.54/x
  3. Step 3: Cross multiply
    39,763.00x = 54,871.80 × 21,855.54
  4. Step 4: Simplify right side
    39,763.00x = 1,199,252,819.77
  5. Step 5: Solve for x
    x = 1,199,252,819.77/39,763.00
  6. Step 6: Final answer
    x = 30,160.02

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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.