Home / 22,186.17-30,615.71-12,114.45

Finding the Fourth Proportional to 22,186.17, 30,615.71 and 12,114.45

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Solution

The fourth proportional to 22,186.17, 30,615.71 and 12,114.45 is: 16,717.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,186.17 : 30,615.71 = 12,114.45 : x
  2. Step 2: Convert to fraction form
    22,186.17/30,615.71 = 12,114.45/x
  3. Step 3: Cross multiply
    22,186.17x = 30,615.71 × 12,114.45
  4. Step 4: Simplify right side
    22,186.17x = 370,892,427.44
  5. Step 5: Solve for x
    x = 370,892,427.44/22,186.17
  6. Step 6: Final answer
    x = 16,717.28

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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.