Home / 20,159.20-27,817.58-11,205.26

Finding the Fourth Proportional to 20,159.20, 27,817.58 and 11,205.26

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Solution

The fourth proportional to 20,159.20, 27,817.58 and 11,205.26 is: 15,462.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159.20 : 27,817.58 = 11,205.26 : x
  2. Step 2: Convert to fraction form
    20,159.20/27,817.58 = 11,205.26/x
  3. Step 3: Cross multiply
    20,159.20x = 27,817.58 × 11,205.26
  4. Step 4: Simplify right side
    20,159.20x = 311,703,021.36
  5. Step 5: Solve for x
    x = 311,703,021.36/20,159.20
  6. Step 6: Final answer
    x = 15,462.08

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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.