Home / 28,786.14-39,715.68-16,208.46

Finding the Fourth Proportional to 28,786.14, 39,715.68 and 16,208.46

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Solution

The fourth proportional to 28,786.14, 39,715.68 and 16,208.46 is: 22,362.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,786.14 : 39,715.68 = 16,208.46 : x
  2. Step 2: Convert to fraction form
    28,786.14/39,715.68 = 16,208.46/x
  3. Step 3: Cross multiply
    28,786.14x = 39,715.68 × 16,208.46
  4. Step 4: Simplify right side
    28,786.14x = 643,730,010.65
  5. Step 5: Solve for x
    x = 643,730,010.65/28,786.14
  6. Step 6: Final answer
    x = 22,362.50

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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.