Home / 29,129.28-43,708.32-10,418.40

Finding the Fourth Proportional to 29,129.28, 43,708.32 and 10,418.40

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Solution

The fourth proportional to 29,129.28, 43,708.32 and 10,418.40 is: 15,632.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,129.28 : 43,708.32 = 10,418.40 : x
  2. Step 2: Convert to fraction form
    29,129.28/43,708.32 = 10,418.40/x
  3. Step 3: Cross multiply
    29,129.28x = 43,708.32 × 10,418.40
  4. Step 4: Simplify right side
    29,129.28x = 455,370,761.09
  5. Step 5: Solve for x
    x = 455,370,761.09/29,129.28
  6. Step 6: Final answer
    x = 15,632.75

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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.