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Finding the Fourth Proportional to 29,133.87, 40,218.29 and 21,966.68

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Solution

The fourth proportional to 29,133.87, 40,218.29 and 21,966.68 is: 30,324.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,133.87 : 40,218.29 = 21,966.68 : x
  2. Step 2: Convert to fraction form
    29,133.87/40,218.29 = 21,966.68/x
  3. Step 3: Cross multiply
    29,133.87x = 40,218.29 × 21,966.68
  4. Step 4: Simplify right side
    29,133.87x = 883,462,306.58
  5. Step 5: Solve for x
    x = 883,462,306.58/29,133.87
  6. Step 6: Final answer
    x = 30,324.23

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Double scale
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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.