Home / 38,891.45-53,671.14-21,896.26

Finding the Fourth Proportional to 38,891.45, 53,671.14 and 21,896.26

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Solution

The fourth proportional to 38,891.45, 53,671.14 and 21,896.26 is: 30,217.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,891.45 : 53,671.14 = 21,896.26 : x
  2. Step 2: Convert to fraction form
    38,891.45/53,671.14 = 21,896.26/x
  3. Step 3: Cross multiply
    38,891.45x = 53,671.14 × 21,896.26
  4. Step 4: Simplify right side
    38,891.45x = 1,175,197,101.76
  5. Step 5: Solve for x
    x = 1,175,197,101.76/38,891.45
  6. Step 6: Final answer
    x = 30,217.36

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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.