Home / 38,882.71-53,659.14-21,887.56

Finding the Fourth Proportional to 38,882.71, 53,659.14 and 21,887.56

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Solution

The fourth proportional to 38,882.71, 53,659.14 and 21,887.56 is: 30,205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,882.71 : 53,659.14 = 21,887.56 : x
  2. Step 2: Convert to fraction form
    38,882.71/53,659.14 = 21,887.56/x
  3. Step 3: Cross multiply
    38,882.71x = 53,659.14 × 21,887.56
  4. Step 4: Simplify right side
    38,882.71x = 1,174,467,540.16
  5. Step 5: Solve for x
    x = 1,174,467,540.16/38,882.71
  6. Step 6: Final answer
    x = 30,205.40

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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.