Home / 20,166.49-27,815.18-15,550.22

Finding the Fourth Proportional to 20,166.49, 27,815.18 and 15,550.22

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Solution

The fourth proportional to 20,166.49, 27,815.18 and 15,550.22 is: 21,448.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.49 : 27,815.18 = 15,550.22 : x
  2. Step 2: Convert to fraction form
    20,166.49/27,815.18 = 15,550.22/x
  3. Step 3: Cross multiply
    20,166.49x = 27,815.18 × 15,550.22
  4. Step 4: Simplify right side
    20,166.49x = 432,532,168.34
  5. Step 5: Solve for x
    x = 432,532,168.34/20,166.49
  6. Step 6: Final answer
    x = 21,448.06

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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.