Home / 20,166.57-27,828.36-11,213.64

Finding the Fourth Proportional to 20,166.57, 27,828.36 and 11,213.64

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Solution

The fourth proportional to 20,166.57, 27,828.36 and 11,213.64 is: 15,473.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.57 : 27,828.36 = 11,213.64 : x
  2. Step 2: Convert to fraction form
    20,166.57/27,828.36 = 11,213.64/x
  3. Step 3: Cross multiply
    20,166.57x = 27,828.36 × 11,213.64
  4. Step 4: Simplify right side
    20,166.57x = 312,057,210.83
  5. Step 5: Solve for x
    x = 312,057,210.83/20,166.57
  6. Step 6: Final answer
    x = 15,473.99

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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.