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Finding the Fourth Proportional to 29,097.78, 40,119.70 and 22,639.29

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Solution

The fourth proportional to 29,097.78, 40,119.70 and 22,639.29 is: 31,214.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,097.78 : 40,119.70 = 22,639.29 : x
  2. Step 2: Convert to fraction form
    29,097.78/40,119.70 = 22,639.29/x
  3. Step 3: Cross multiply
    29,097.78x = 40,119.70 × 22,639.29
  4. Step 4: Simplify right side
    29,097.78x = 908,281,523.01
  5. Step 5: Solve for x
    x = 908,281,523.01/29,097.78
  6. Step 6: Final answer
    x = 31,214.81

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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.