Home / 20,165.50-27,828.39-11,333.50

Finding the Fourth Proportional to 20,165.50, 27,828.39 and 11,333.50

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Solution

The fourth proportional to 20,165.50, 27,828.39 and 11,333.50 is: 15,640.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.50 : 27,828.39 = 11,333.50 : x
  2. Step 2: Convert to fraction form
    20,165.50/27,828.39 = 11,333.50/x
  3. Step 3: Cross multiply
    20,165.50x = 27,828.39 × 11,333.50
  4. Step 4: Simplify right side
    20,165.50x = 315,393,058.07
  5. Step 5: Solve for x
    x = 315,393,058.07/20,165.50
  6. Step 6: Final answer
    x = 15,640.23

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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.