Home / 39,182.95-54,072.30-21,277.81

Finding the Fourth Proportional to 39,182.95, 54,072.30 and 21,277.81

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Solution

The fourth proportional to 39,182.95, 54,072.30 and 21,277.81 is: 29,363.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,182.95 : 54,072.30 = 21,277.81 : x
  2. Step 2: Convert to fraction form
    39,182.95/54,072.30 = 21,277.81/x
  3. Step 3: Cross multiply
    39,182.95x = 54,072.30 × 21,277.81
  4. Step 4: Simplify right side
    39,182.95x = 1,150,540,125.66
  5. Step 5: Solve for x
    x = 1,150,540,125.66/39,182.95
  6. Step 6: Final answer
    x = 29,363.28

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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.