Home / 39,773.12-54,885.43-21,867.06

Finding the Fourth Proportional to 39,773.12, 54,885.43 and 21,867.06

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Solution

The fourth proportional to 39,773.12, 54,885.43 and 21,867.06 is: 30,175.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,773.12 : 54,885.43 = 21,867.06 : x
  2. Step 2: Convert to fraction form
    39,773.12/54,885.43 = 21,867.06/x
  3. Step 3: Cross multiply
    39,773.12x = 54,885.43 × 21,867.06
  4. Step 4: Simplify right side
    39,773.12x = 1,200,182,990.94
  5. Step 5: Solve for x
    x = 1,200,182,990.94/39,773.12
  6. Step 6: Final answer
    x = 30,175.73

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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.