Home / 22,188.15-33,304.09-13,440.15

Finding the Fourth Proportional to 22,188.15, 33,304.09 and 13,440.15

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Solution

The fourth proportional to 22,188.15, 33,304.09 and 13,440.15 is: 20,173.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,188.15 : 33,304.09 = 13,440.15 : x
  2. Step 2: Convert to fraction form
    22,188.15/33,304.09 = 13,440.15/x
  3. Step 3: Cross multiply
    22,188.15x = 33,304.09 × 13,440.15
  4. Step 4: Simplify right side
    22,188.15x = 447,611,765.09
  5. Step 5: Solve for x
    x = 447,611,765.09/22,188.15
  6. Step 6: Final answer
    x = 20,173.46

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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.