Home / 39,742.21-54,844.49-21,836.75

Finding the Fourth Proportional to 39,742.21, 54,844.49 and 21,836.75

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Solution

The fourth proportional to 39,742.21, 54,844.49 and 21,836.75 is: 30,134.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,742.21 : 54,844.49 = 21,836.75 : x
  2. Step 2: Convert to fraction form
    39,742.21/54,844.49 = 21,836.75/x
  3. Step 3: Cross multiply
    39,742.21x = 54,844.49 × 21,836.75
  4. Step 4: Simplify right side
    39,742.21x = 1,197,625,444.93
  5. Step 5: Solve for x
    x = 1,197,625,444.93/39,742.21
  6. Step 6: Final answer
    x = 30,134.85

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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.