Home / 38,885.20-53,660.97-21,889.41

Finding the Fourth Proportional to 38,885.20, 53,660.97 and 21,889.41

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Solution

The fourth proportional to 38,885.20, 53,660.97 and 21,889.41 is: 30,207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,885.20 : 53,660.97 = 21,889.41 : x
  2. Step 2: Convert to fraction form
    38,885.20/53,660.97 = 21,889.41/x
  3. Step 3: Cross multiply
    38,885.20x = 53,660.97 × 21,889.41
  4. Step 4: Simplify right side
    38,885.20x = 1,174,606,973.33
  5. Step 5: Solve for x
    x = 1,174,606,973.33/38,885.20
  6. Step 6: Final answer
    x = 30,207.04

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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.