Home / 29,143.28-43,724.10-10,422.86

Finding the Fourth Proportional to 29,143.28, 43,724.10 and 10,422.86

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Solution

The fourth proportional to 29,143.28, 43,724.10 and 10,422.86 is: 15,637.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,143.28 : 43,724.10 = 10,422.86 : x
  2. Step 2: Convert to fraction form
    29,143.28/43,724.10 = 10,422.86/x
  3. Step 3: Cross multiply
    29,143.28x = 43,724.10 × 10,422.86
  4. Step 4: Simplify right side
    29,143.28x = 455,730,172.93
  5. Step 5: Solve for x
    x = 455,730,172.93/29,143.28
  6. Step 6: Final answer
    x = 15,637.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.