Home / 20,159.69-27,817.22-11,207.16

Finding the Fourth Proportional to 20,159.69, 27,817.22 and 11,207.16

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Solution

The fourth proportional to 20,159.69, 27,817.22 and 11,207.16 is: 15,464.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159.69 : 27,817.22 = 11,207.16 : x
  2. Step 2: Convert to fraction form
    20,159.69/27,817.22 = 11,207.16/x
  3. Step 3: Cross multiply
    20,159.69x = 27,817.22 × 11,207.16
  4. Step 4: Simplify right side
    20,159.69x = 311,752,063.31
  5. Step 5: Solve for x
    x = 311,752,063.31/20,159.69
  6. Step 6: Final answer
    x = 15,464.13

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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.