Home / 28,786.38-39,727.70-16,213.56

Finding the Fourth Proportional to 28,786.38, 39,727.70 and 16,213.56

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Solution

The fourth proportional to 28,786.38, 39,727.70 and 16,213.56 is: 22,376.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,786.38 : 39,727.70 = 16,213.56 : x
  2. Step 2: Convert to fraction form
    28,786.38/39,727.70 = 16,213.56/x
  3. Step 3: Cross multiply
    28,786.38x = 39,727.70 × 16,213.56
  4. Step 4: Simplify right side
    28,786.38x = 644,127,447.61
  5. Step 5: Solve for x
    x = 644,127,447.61/28,786.38
  6. Step 6: Final answer
    x = 22,376.12

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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.