Home / 28,738.83-39,659.09-15,992.87

Finding the Fourth Proportional to 28,738.83, 39,659.09 and 15,992.87

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Solution

The fourth proportional to 28,738.83, 39,659.09 and 15,992.87 is: 22,069.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738.83 : 39,659.09 = 15,992.87 : x
  2. Step 2: Convert to fraction form
    28,738.83/39,659.09 = 15,992.87/x
  3. Step 3: Cross multiply
    28,738.83x = 39,659.09 × 15,992.87
  4. Step 4: Simplify right side
    28,738.83x = 634,262,392.43
  5. Step 5: Solve for x
    x = 634,262,392.43/28,738.83
  6. Step 6: Final answer
    x = 22,069.88

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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.