Home / 20,634.05-30,955.89-16,433.21

Finding the Fourth Proportional to 20,634.05, 30,955.89 and 16,433.21

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Solution

The fourth proportional to 20,634.05, 30,955.89 and 16,433.21 is: 24,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.05 : 30,955.89 = 16,433.21 : x
  2. Step 2: Convert to fraction form
    20,634.05/30,955.89 = 16,433.21/x
  3. Step 3: Cross multiply
    20,634.05x = 30,955.89 × 16,433.21
  4. Step 4: Simplify right side
    20,634.05x = 508,704,641.11
  5. Step 5: Solve for x
    x = 508,704,641.11/20,634.05
  6. Step 6: Final answer
    x = 24,653.65

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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.