Home / 39,768.66-54,877.61-22,768.85

Finding the Fourth Proportional to 39,768.66, 54,877.61 and 22,768.85

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Solution

The fourth proportional to 39,768.66, 54,877.61 and 22,768.85 is: 31,419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,768.66 : 54,877.61 = 22,768.85 : x
  2. Step 2: Convert to fraction form
    39,768.66/54,877.61 = 22,768.85/x
  3. Step 3: Cross multiply
    39,768.66x = 54,877.61 × 22,768.85
  4. Step 4: Simplify right side
    39,768.66x = 1,249,499,682.22
  5. Step 5: Solve for x
    x = 1,249,499,682.22/39,768.66
  6. Step 6: Final answer
    x = 31,419.21

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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.