Home / 21,981.62-33,005.37-19,029.17

Finding the Fourth Proportional to 21,981.62, 33,005.37 and 19,029.17

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Solution

The fourth proportional to 21,981.62, 33,005.37 and 19,029.17 is: 28,572.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,981.62 : 33,005.37 = 19,029.17 : x
  2. Step 2: Convert to fraction form
    21,981.62/33,005.37 = 19,029.17/x
  3. Step 3: Cross multiply
    21,981.62x = 33,005.37 × 19,029.17
  4. Step 4: Simplify right side
    21,981.62x = 628,064,796.64
  5. Step 5: Solve for x
    x = 628,064,796.64/21,981.62
  6. Step 6: Final answer
    x = 28,572.27

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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.