Home / 22,212.36-30,660.12-15,498

Finding the Fourth Proportional to 22,212.36, 30,660.12 and 15,498

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Solution

The fourth proportional to 22,212.36, 30,660.12 and 15,498 is: 21,392.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,212.36 : 30,660.12 = 15,498 : x
  2. Step 2: Convert to fraction form
    22,212.36/30,660.12 = 15,498/x
  3. Step 3: Cross multiply
    22,212.36x = 30,660.12 × 15,498
  4. Step 4: Simplify right side
    22,212.36x = 475,170,539.76
  5. Step 5: Solve for x
    x = 475,170,539.76/22,212.36
  6. Step 6: Final answer
    x = 21,392.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.