Home / 21,198.08-31,797.60-7,347.04

Finding the Fourth Proportional to 21,198.08, 31,797.60 and 7,347.04

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Solution

The fourth proportional to 21,198.08, 31,797.60 and 7,347.04 is: 11,020.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198.08 : 31,797.60 = 7,347.04 : x
  2. Step 2: Convert to fraction form
    21,198.08/31,797.60 = 7,347.04/x
  3. Step 3: Cross multiply
    21,198.08x = 31,797.60 × 7,347.04
  4. Step 4: Simplify right side
    21,198.08x = 233,618,239.10
  5. Step 5: Solve for x
    x = 233,618,239.10/21,198.08
  6. Step 6: Final answer
    x = 11,020.73

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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.