Home / 19,422.64-29,135.42-5,382.50

Finding the Fourth Proportional to 19,422.64, 29,135.42 and 5,382.50

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Solution

The fourth proportional to 19,422.64, 29,135.42 and 5,382.50 is: 8,074.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422.64 : 29,135.42 = 5,382.50 : x
  2. Step 2: Convert to fraction form
    19,422.64/29,135.42 = 5,382.50/x
  3. Step 3: Cross multiply
    19,422.64x = 29,135.42 × 5,382.50
  4. Step 4: Simplify right side
    19,422.64x = 156,821,398.15
  5. Step 5: Solve for x
    x = 156,821,398.15/19,422.64
  6. Step 6: Final answer
    x = 8,074.16

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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.