Home / 39,846.12-54,987.51-21,941.16

Finding the Fourth Proportional to 39,846.12, 54,987.51 and 21,941.16

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Solution

The fourth proportional to 39,846.12, 54,987.51 and 21,941.16 is: 30,278.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,846.12 : 54,987.51 = 21,941.16 : x
  2. Step 2: Convert to fraction form
    39,846.12/54,987.51 = 21,941.16/x
  3. Step 3: Cross multiply
    39,846.12x = 54,987.51 × 21,941.16
  4. Step 4: Simplify right side
    39,846.12x = 1,206,489,754.91
  5. Step 5: Solve for x
    x = 1,206,489,754.91/39,846.12
  6. Step 6: Final answer
    x = 30,278.73

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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.