Home / 22,188.10-30,623.53-13,113.09

Finding the Fourth Proportional to 22,188.10, 30,623.53 and 13,113.09

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Solution

The fourth proportional to 22,188.10, 30,623.53 and 13,113.09 is: 18,098.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,188.10 : 30,623.53 = 13,113.09 : x
  2. Step 2: Convert to fraction form
    22,188.10/30,623.53 = 13,113.09/x
  3. Step 3: Cross multiply
    22,188.10x = 30,623.53 × 13,113.09
  4. Step 4: Simplify right side
    22,188.10x = 401,569,006.56
  5. Step 5: Solve for x
    x = 401,569,006.56/22,188.10
  6. Step 6: Final answer
    x = 18,098.40

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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.