Home / 19,801.61-29,703.75-7,321.33

Finding the Fourth Proportional to 19,801.61, 29,703.75 and 7,321.33

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Solution

The fourth proportional to 19,801.61, 29,703.75 and 7,321.33 is: 10,982.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,801.61 : 29,703.75 = 7,321.33 : x
  2. Step 2: Convert to fraction form
    19,801.61/29,703.75 = 7,321.33/x
  3. Step 3: Cross multiply
    19,801.61x = 29,703.75 × 7,321.33
  4. Step 4: Simplify right side
    19,801.61x = 217,470,965.66
  5. Step 5: Solve for x
    x = 217,470,965.66/19,801.61
  6. Step 6: Final answer
    x = 10,982.49

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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.