Home / 35,979.11-49,638.11-20,863.43

Finding the Fourth Proportional to 35,979.11, 49,638.11 and 20,863.43

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Solution

The fourth proportional to 35,979.11, 49,638.11 and 20,863.43 is: 28,783.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,979.11 : 49,638.11 = 20,863.43 : x
  2. Step 2: Convert to fraction form
    35,979.11/49,638.11 = 20,863.43/x
  3. Step 3: Cross multiply
    35,979.11x = 49,638.11 × 20,863.43
  4. Step 4: Simplify right side
    35,979.11x = 1,035,621,233.32
  5. Step 5: Solve for x
    x = 1,035,621,233.32/35,979.11
  6. Step 6: Final answer
    x = 28,783.96

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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.