Home / 39,669.22-54,743.57-21,764.30

Finding the Fourth Proportional to 39,669.22, 54,743.57 and 21,764.30

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Solution

The fourth proportional to 39,669.22, 54,743.57 and 21,764.30 is: 30,034.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,669.22 : 54,743.57 = 21,764.30 : x
  2. Step 2: Convert to fraction form
    39,669.22/54,743.57 = 21,764.30/x
  3. Step 3: Cross multiply
    39,669.22x = 54,743.57 × 21,764.30
  4. Step 4: Simplify right side
    39,669.22x = 1,191,455,240.84
  5. Step 5: Solve for x
    x = 1,191,455,240.84/39,669.22
  6. Step 6: Final answer
    x = 30,034.75

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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.