Home / 22,189.16-30,608.34-15,817.16

Finding the Fourth Proportional to 22,189.16, 30,608.34 and 15,817.16

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Solution

The fourth proportional to 22,189.16, 30,608.34 and 15,817.16 is: 21,818.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,189.16 : 30,608.34 = 15,817.16 : x
  2. Step 2: Convert to fraction form
    22,189.16/30,608.34 = 15,817.16/x
  3. Step 3: Cross multiply
    22,189.16x = 30,608.34 × 15,817.16
  4. Step 4: Simplify right side
    22,189.16x = 484,137,011.11
  5. Step 5: Solve for x
    x = 484,137,011.11/22,189.16
  6. Step 6: Final answer
    x = 21,818.63

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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.