Home / 29,639.82-40,884.24-20,684.05

Finding the Fourth Proportional to 29,639.82, 40,884.24 and 20,684.05

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Solution

The fourth proportional to 29,639.82, 40,884.24 and 20,684.05 is: 28,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,639.82 : 40,884.24 = 20,684.05 : x
  2. Step 2: Convert to fraction form
    29,639.82/40,884.24 = 20,684.05/x
  3. Step 3: Cross multiply
    29,639.82x = 40,884.24 × 20,684.05
  4. Step 4: Simplify right side
    29,639.82x = 845,651,664.37
  5. Step 5: Solve for x
    x = 845,651,664.37/29,639.82
  6. Step 6: Final answer
    x = 28,530.93

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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.