Home / 20,223.36-27,886.31-13,767.17

Finding the Fourth Proportional to 20,223.36, 27,886.31 and 13,767.17

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Solution

The fourth proportional to 20,223.36, 27,886.31 and 13,767.17 is: 18,983.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.36 : 27,886.31 = 13,767.17 : x
  2. Step 2: Convert to fraction form
    20,223.36/27,886.31 = 13,767.17/x
  3. Step 3: Cross multiply
    20,223.36x = 27,886.31 × 13,767.17
  4. Step 4: Simplify right side
    20,223.36x = 383,915,413.80
  5. Step 5: Solve for x
    x = 383,915,413.80/20,223.36
  6. Step 6: Final answer
    x = 18,983.76

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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.