Home / 29,943.78-41,318.61-18,615.12

Finding the Fourth Proportional to 29,943.78, 41,318.61 and 18,615.12

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Solution

The fourth proportional to 29,943.78, 41,318.61 and 18,615.12 is: 25,686.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,943.78 : 41,318.61 = 18,615.12 : x
  2. Step 2: Convert to fraction form
    29,943.78/41,318.61 = 18,615.12/x
  3. Step 3: Cross multiply
    29,943.78x = 41,318.61 × 18,615.12
  4. Step 4: Simplify right side
    29,943.78x = 769,150,883.38
  5. Step 5: Solve for x
    x = 769,150,883.38/29,943.78
  6. Step 6: Final answer
    x = 25,686.50

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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.