Home / 29,967.17-41,370.24-21,891.76

Finding the Fourth Proportional to 29,967.17, 41,370.24 and 21,891.76

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Solution

The fourth proportional to 29,967.17, 41,370.24 and 21,891.76 is: 30,221.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,967.17 : 41,370.24 = 21,891.76 : x
  2. Step 2: Convert to fraction form
    29,967.17/41,370.24 = 21,891.76/x
  3. Step 3: Cross multiply
    29,967.17x = 41,370.24 × 21,891.76
  4. Step 4: Simplify right side
    29,967.17x = 905,667,365.22
  5. Step 5: Solve for x
    x = 905,667,365.22/29,967.17
  6. Step 6: Final answer
    x = 30,221.99

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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.