Home / 21,299.06-31,947.28-6,506.64

Finding the Fourth Proportional to 21,299.06, 31,947.28 and 6,506.64

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Solution

The fourth proportional to 21,299.06, 31,947.28 and 6,506.64 is: 9,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,299.06 : 31,947.28 = 6,506.64 : x
  2. Step 2: Convert to fraction form
    21,299.06/31,947.28 = 6,506.64/x
  3. Step 3: Cross multiply
    21,299.06x = 31,947.28 × 6,506.64
  4. Step 4: Simplify right side
    21,299.06x = 207,869,433.67
  5. Step 5: Solve for x
    x = 207,869,433.67/21,299.06
  6. Step 6: Final answer
    x = 9,759.56

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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.