Home / 27,121.48-37,401.34-21,150.96

Finding the Fourth Proportional to 27,121.48, 37,401.34 and 21,150.96

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Solution

The fourth proportional to 27,121.48, 37,401.34 and 21,150.96 is: 29,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.48 : 37,401.34 = 21,150.96 : x
  2. Step 2: Convert to fraction form
    27,121.48/37,401.34 = 21,150.96/x
  3. Step 3: Cross multiply
    27,121.48x = 37,401.34 × 21,150.96
  4. Step 4: Simplify right side
    27,121.48x = 791,074,246.29
  5. Step 5: Solve for x
    x = 791,074,246.29/27,121.48
  6. Step 6: Final answer
    x = 29,167.81

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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.