Home / 20,242.13-27,936.57-11,858.63

Finding the Fourth Proportional to 20,242.13, 27,936.57 and 11,858.63

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Solution

The fourth proportional to 20,242.13, 27,936.57 and 11,858.63 is: 16,366.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.13 : 27,936.57 = 11,858.63 : x
  2. Step 2: Convert to fraction form
    20,242.13/27,936.57 = 11,858.63/x
  3. Step 3: Cross multiply
    20,242.13x = 27,936.57 × 11,858.63
  4. Step 4: Simplify right side
    20,242.13x = 331,289,307.42
  5. Step 5: Solve for x
    x = 331,289,307.42/20,242.13
  6. Step 6: Final answer
    x = 16,366.33

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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.