Home / 20,673.11-31,012.43-6,628.48

Finding the Fourth Proportional to 20,673.11, 31,012.43 and 6,628.48

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Solution

The fourth proportional to 20,673.11, 31,012.43 and 6,628.48 is: 9,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.11 : 31,012.43 = 6,628.48 : x
  2. Step 2: Convert to fraction form
    20,673.11/31,012.43 = 6,628.48/x
  3. Step 3: Cross multiply
    20,673.11x = 31,012.43 × 6,628.48
  4. Step 4: Simplify right side
    20,673.11x = 205,565,211.05
  5. Step 5: Solve for x
    x = 205,565,211.05/20,673.11
  6. Step 6: Final answer
    x = 9,943.60

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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.