Home / 29,422.78-40,612.72-18,812.46

Finding the Fourth Proportional to 29,422.78, 40,612.72 and 18,812.46

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Solution

The fourth proportional to 29,422.78, 40,612.72 and 18,812.46 is: 25,967.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,422.78 : 40,612.72 = 18,812.46 : x
  2. Step 2: Convert to fraction form
    29,422.78/40,612.72 = 18,812.46/x
  3. Step 3: Cross multiply
    29,422.78x = 40,612.72 × 18,812.46
  4. Step 4: Simplify right side
    29,422.78x = 764,025,170.49
  5. Step 5: Solve for x
    x = 764,025,170.49/29,422.78
  6. Step 6: Final answer
    x = 25,967.13

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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.