Home / 20,117.11-30,165.54-6,965.95

Finding the Fourth Proportional to 20,117.11, 30,165.54 and 6,965.95

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Solution

The fourth proportional to 20,117.11, 30,165.54 and 6,965.95 is: 10,445.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.11 : 30,165.54 = 6,965.95 : x
  2. Step 2: Convert to fraction form
    20,117.11/30,165.54 = 6,965.95/x
  3. Step 3: Cross multiply
    20,117.11x = 30,165.54 × 6,965.95
  4. Step 4: Simplify right side
    20,117.11x = 210,131,643.36
  5. Step 5: Solve for x
    x = 210,131,643.36/20,117.11
  6. Step 6: Final answer
    x = 10,445.42

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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.