Home / 30,838.11-42,563.25-20,096.43

Finding the Fourth Proportional to 30,838.11, 42,563.25 and 20,096.43

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Solution

The fourth proportional to 30,838.11, 42,563.25 and 20,096.43 is: 27,737.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,838.11 : 42,563.25 = 20,096.43 : x
  2. Step 2: Convert to fraction form
    30,838.11/42,563.25 = 20,096.43/x
  3. Step 3: Cross multiply
    30,838.11x = 42,563.25 × 20,096.43
  4. Step 4: Simplify right side
    30,838.11x = 855,369,374.20
  5. Step 5: Solve for x
    x = 855,369,374.20/30,838.11
  6. Step 6: Final answer
    x = 27,737.41

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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.