Home / 22,186.40-30,616.83-12,114.57

Finding the Fourth Proportional to 22,186.40, 30,616.83 and 12,114.57

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Solution

The fourth proportional to 22,186.40, 30,616.83 and 12,114.57 is: 16,717.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,186.40 : 30,616.83 = 12,114.57 : x
  2. Step 2: Convert to fraction form
    22,186.40/30,616.83 = 12,114.57/x
  3. Step 3: Cross multiply
    22,186.40x = 30,616.83 × 12,114.57
  4. Step 4: Simplify right side
    22,186.40x = 370,909,730.21
  5. Step 5: Solve for x
    x = 370,909,730.21/22,186.40
  6. Step 6: Final answer
    x = 16,717.89

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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.