Home / 27,645.75-38,151.41-15,070.77

Finding the Fourth Proportional to 27,645.75, 38,151.41 and 15,070.77

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Solution

The fourth proportional to 27,645.75, 38,151.41 and 15,070.77 is: 20,797.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,645.75 : 38,151.41 = 15,070.77 : x
  2. Step 2: Convert to fraction form
    27,645.75/38,151.41 = 15,070.77/x
  3. Step 3: Cross multiply
    27,645.75x = 38,151.41 × 15,070.77
  4. Step 4: Simplify right side
    27,645.75x = 574,971,049.93
  5. Step 5: Solve for x
    x = 574,971,049.93/27,645.75
  6. Step 6: Final answer
    x = 20,797.81

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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.