Home / 39,692.07-54,774.72-21,786.66

Finding the Fourth Proportional to 39,692.07, 54,774.72 and 21,786.66

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Solution

The fourth proportional to 39,692.07, 54,774.72 and 21,786.66 is: 30,065.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,692.07 : 54,774.72 = 21,786.66 : x
  2. Step 2: Convert to fraction form
    39,692.07/54,774.72 = 21,786.66/x
  3. Step 3: Cross multiply
    39,692.07x = 54,774.72 × 21,786.66
  4. Step 4: Simplify right side
    39,692.07x = 1,193,358,201.24
  5. Step 5: Solve for x
    x = 1,193,358,201.24/39,692.07
  6. Step 6: Final answer
    x = 30,065.41

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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.