Home / 28,086.25-42,161.78-14,264.41

Finding the Fourth Proportional to 28,086.25, 42,161.78 and 14,264.41

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Solution

The fourth proportional to 28,086.25, 42,161.78 and 14,264.41 is: 21,413.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086.25 : 42,161.78 = 14,264.41 : x
  2. Step 2: Convert to fraction form
    28,086.25/42,161.78 = 14,264.41/x
  3. Step 3: Cross multiply
    28,086.25x = 42,161.78 × 14,264.41
  4. Step 4: Simplify right side
    28,086.25x = 601,412,916.25
  5. Step 5: Solve for x
    x = 601,412,916.25/28,086.25
  6. Step 6: Final answer
    x = 21,413.07

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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.