Home / 28,206.63-42,302.99-11,571.39

Finding the Fourth Proportional to 28,206.63, 42,302.99 and 11,571.39

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Solution

The fourth proportional to 28,206.63, 42,302.99 and 11,571.39 is: 17,354.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.63 : 42,302.99 = 11,571.39 : x
  2. Step 2: Convert to fraction form
    28,206.63/42,302.99 = 11,571.39/x
  3. Step 3: Cross multiply
    28,206.63x = 42,302.99 × 11,571.39
  4. Step 4: Simplify right side
    28,206.63x = 489,504,424.38
  5. Step 5: Solve for x
    x = 489,504,424.38/28,206.63
  6. Step 6: Final answer
    x = 17,354.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.