Home / 20,773.07-31,162.34-6,728.28

Finding the Fourth Proportional to 20,773.07, 31,162.34 and 6,728.28

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Solution

The fourth proportional to 20,773.07, 31,162.34 and 6,728.28 is: 10,093.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.07 : 31,162.34 = 6,728.28 : x
  2. Step 2: Convert to fraction form
    20,773.07/31,162.34 = 6,728.28/x
  3. Step 3: Cross multiply
    20,773.07x = 31,162.34 × 6,728.28
  4. Step 4: Simplify right side
    20,773.07x = 209,668,948.98
  5. Step 5: Solve for x
    x = 209,668,948.98/20,773.07
  6. Step 6: Final answer
    x = 10,093.31

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1.5x scale

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.