Home / 27,645.18-38,150.44-15,712.48

Finding the Fourth Proportional to 27,645.18, 38,150.44 and 15,712.48

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Solution

The fourth proportional to 27,645.18, 38,150.44 and 15,712.48 is: 21,683.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,645.18 : 38,150.44 = 15,712.48 : x
  2. Step 2: Convert to fraction form
    27,645.18/38,150.44 = 15,712.48/x
  3. Step 3: Cross multiply
    27,645.18x = 38,150.44 × 15,712.48
  4. Step 4: Simplify right side
    27,645.18x = 599,438,025.49
  5. Step 5: Solve for x
    x = 599,438,025.49/27,645.18
  6. Step 6: Final answer
    x = 21,683.27

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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.