Home / 27,121.20-37,426.16-15,791.03

Finding the Fourth Proportional to 27,121.20, 37,426.16 and 15,791.03

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Solution

The fourth proportional to 27,121.20, 37,426.16 and 15,791.03 is: 21,790.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.20 : 37,426.16 = 15,791.03 : x
  2. Step 2: Convert to fraction form
    27,121.20/37,426.16 = 15,791.03/x
  3. Step 3: Cross multiply
    27,121.20x = 37,426.16 × 15,791.03
  4. Step 4: Simplify right side
    27,121.20x = 590,997,748.39
  5. Step 5: Solve for x
    x = 590,997,748.39/27,121.20
  6. Step 6: Final answer
    x = 21,790.99

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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.