Home / 39,844.86-54,987.27-21,941.10

Finding the Fourth Proportional to 39,844.86, 54,987.27 and 21,941.10

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Solution

The fourth proportional to 39,844.86, 54,987.27 and 21,941.10 is: 30,279.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,844.86 : 54,987.27 = 21,941.10 : x
  2. Step 2: Convert to fraction form
    39,844.86/54,987.27 = 21,941.10/x
  3. Step 3: Cross multiply
    39,844.86x = 54,987.27 × 21,941.10
  4. Step 4: Simplify right side
    39,844.86x = 1,206,481,189.80
  5. Step 5: Solve for x
    x = 1,206,481,189.80/39,844.86
  6. Step 6: Final answer
    x = 30,279.47

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1.5x scale

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.