Home / 39,656.49-54,726.03-21,751.64

Finding the Fourth Proportional to 39,656.49, 54,726.03 and 21,751.64

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Solution

The fourth proportional to 39,656.49, 54,726.03 and 21,751.64 is: 30,017.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,656.49 : 54,726.03 = 21,751.64 : x
  2. Step 2: Convert to fraction form
    39,656.49/54,726.03 = 21,751.64/x
  3. Step 3: Cross multiply
    39,656.49x = 54,726.03 × 21,751.64
  4. Step 4: Simplify right side
    39,656.49x = 1,190,380,834.78
  5. Step 5: Solve for x
    x = 1,190,380,834.78/39,656.49
  6. Step 6: Final answer
    x = 30,017.30

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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.