Home / 19,703.06-29,565.84-7,221.44

Finding the Fourth Proportional to 19,703.06, 29,565.84 and 7,221.44

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Solution

The fourth proportional to 19,703.06, 29,565.84 and 7,221.44 is: 10,836.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,703.06 : 29,565.84 = 7,221.44 : x
  2. Step 2: Convert to fraction form
    19,703.06/29,565.84 = 7,221.44/x
  3. Step 3: Cross multiply
    19,703.06x = 29,565.84 × 7,221.44
  4. Step 4: Simplify right side
    19,703.06x = 213,507,939.61
  5. Step 5: Solve for x
    x = 213,507,939.61/19,703.06
  6. Step 6: Final answer
    x = 10,836.28

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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.