Home / 20,933.18-31,404.08-6,894.04

Finding the Fourth Proportional to 20,933.18, 31,404.08 and 6,894.04

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Solution

The fourth proportional to 20,933.18, 31,404.08 and 6,894.04 is: 10,342.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,933.18 : 31,404.08 = 6,894.04 : x
  2. Step 2: Convert to fraction form
    20,933.18/31,404.08 = 6,894.04/x
  3. Step 3: Cross multiply
    20,933.18x = 31,404.08 × 6,894.04
  4. Step 4: Simplify right side
    20,933.18x = 216,500,873.58
  5. Step 5: Solve for x
    x = 216,500,873.58/20,933.18
  6. Step 6: Final answer
    x = 10,342.47

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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.