Home / 28,738.46-39,659.10-15,992.81

Finding the Fourth Proportional to 28,738.46, 39,659.10 and 15,992.81

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Solution

The fourth proportional to 28,738.46, 39,659.10 and 15,992.81 is: 22,070.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738.46 : 39,659.10 = 15,992.81 : x
  2. Step 2: Convert to fraction form
    28,738.46/39,659.10 = 15,992.81/x
  3. Step 3: Cross multiply
    28,738.46x = 39,659.10 × 15,992.81
  4. Step 4: Simplify right side
    28,738.46x = 634,260,252.78
  5. Step 5: Solve for x
    x = 634,260,252.78/28,738.46
  6. Step 6: Final answer
    x = 22,070.09

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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.