Home / 39,705.83-54,794.10-21,801.98

Finding the Fourth Proportional to 39,705.83, 54,794.10 and 21,801.98

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Solution

The fourth proportional to 39,705.83, 54,794.10 and 21,801.98 is: 30,086.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,705.83 : 54,794.10 = 21,801.98 : x
  2. Step 2: Convert to fraction form
    39,705.83/54,794.10 = 21,801.98/x
  3. Step 3: Cross multiply
    39,705.83x = 54,794.10 × 21,801.98
  4. Step 4: Simplify right side
    39,705.83x = 1,194,619,782.84
  5. Step 5: Solve for x
    x = 1,194,619,782.84/39,705.83
  6. Step 6: Final answer
    x = 30,086.76

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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.