Home / 39,838.06-54,976.08-21,932.70

Finding the Fourth Proportional to 39,838.06, 54,976.08 and 21,932.70

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Solution

The fourth proportional to 39,838.06, 54,976.08 and 21,932.70 is: 30,266.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,838.06 : 54,976.08 = 21,932.70 : x
  2. Step 2: Convert to fraction form
    39,838.06/54,976.08 = 21,932.70/x
  3. Step 3: Cross multiply
    39,838.06x = 54,976.08 × 21,932.70
  4. Step 4: Simplify right side
    39,838.06x = 1,205,773,869.82
  5. Step 5: Solve for x
    x = 1,205,773,869.82/39,838.06
  6. Step 6: Final answer
    x = 30,266.88

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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.