Home / 27,645.27-38,150.43-15,708.60

Finding the Fourth Proportional to 27,645.27, 38,150.43 and 15,708.60

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Solution

The fourth proportional to 27,645.27, 38,150.43 and 15,708.60 is: 21,677.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,645.27 : 38,150.43 = 15,708.60 : x
  2. Step 2: Convert to fraction form
    27,645.27/38,150.43 = 15,708.60/x
  3. Step 3: Cross multiply
    27,645.27x = 38,150.43 × 15,708.60
  4. Step 4: Simplify right side
    27,645.27x = 599,289,785.79
  5. Step 5: Solve for x
    x = 599,289,785.79/27,645.27
  6. Step 6: Final answer
    x = 21,677.84

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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.