Home / 22,212.84-30,653.76-12,141.40

Finding the Fourth Proportional to 22,212.84, 30,653.76 and 12,141.40

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Solution

The fourth proportional to 22,212.84, 30,653.76 and 12,141.40 is: 16,755.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,212.84 : 30,653.76 = 12,141.40 : x
  2. Step 2: Convert to fraction form
    22,212.84/30,653.76 = 12,141.40/x
  3. Step 3: Cross multiply
    22,212.84x = 30,653.76 × 12,141.40
  4. Step 4: Simplify right side
    22,212.84x = 372,179,561.66
  5. Step 5: Solve for x
    x = 372,179,561.66/22,212.84
  6. Step 6: Final answer
    x = 16,755.15

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1.5x scale

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.