Home / 39,847.07-54,985.64-21,943.04

Finding the Fourth Proportional to 39,847.07, 54,985.64 and 21,943.04

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Solution

The fourth proportional to 39,847.07, 54,985.64 and 21,943.04 is: 30,279.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,847.07 : 54,985.64 = 21,943.04 : x
  2. Step 2: Convert to fraction form
    39,847.07/54,985.64 = 21,943.04/x
  3. Step 3: Cross multiply
    39,847.07x = 54,985.64 × 21,943.04
  4. Step 4: Simplify right side
    39,847.07x = 1,206,551,713.30
  5. Step 5: Solve for x
    x = 1,206,551,713.30/39,847.07
  6. Step 6: Final answer
    x = 30,279.56

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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.