Home / 22,300.39-30,774.89-12,229.75

Finding the Fourth Proportional to 22,300.39, 30,774.89 and 12,229.75

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Solution

The fourth proportional to 22,300.39, 30,774.89 and 12,229.75 is: 16,877.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,300.39 : 30,774.89 = 12,229.75 : x
  2. Step 2: Convert to fraction form
    22,300.39/30,774.89 = 12,229.75/x
  3. Step 3: Cross multiply
    22,300.39x = 30,774.89 × 12,229.75
  4. Step 4: Simplify right side
    22,300.39x = 376,369,210.98
  5. Step 5: Solve for x
    x = 376,369,210.98/22,300.39
  6. Step 6: Final answer
    x = 16,877.25

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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.