Home / 21,277.56-31,906.44-6,488.04

Finding the Fourth Proportional to 21,277.56, 31,906.44 and 6,488.04

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Solution

The fourth proportional to 21,277.56, 31,906.44 and 6,488.04 is: 9,729.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.56 : 31,906.44 = 6,488.04 : x
  2. Step 2: Convert to fraction form
    21,277.56/31,906.44 = 6,488.04/x
  3. Step 3: Cross multiply
    21,277.56x = 31,906.44 × 6,488.04
  4. Step 4: Simplify right side
    21,277.56x = 207,010,258.98
  5. Step 5: Solve for x
    x = 207,010,258.98/21,277.56
  6. Step 6: Final answer
    x = 9,729.04

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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.