Home / 22,158.96-30,564.14-13,199.56

Finding the Fourth Proportional to 22,158.96, 30,564.14 and 13,199.56

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Solution

The fourth proportional to 22,158.96, 30,564.14 and 13,199.56 is: 18,206.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,158.96 : 30,564.14 = 13,199.56 : x
  2. Step 2: Convert to fraction form
    22,158.96/30,564.14 = 13,199.56/x
  3. Step 3: Cross multiply
    22,158.96x = 30,564.14 × 13,199.56
  4. Step 4: Simplify right side
    22,158.96x = 403,433,199.78
  5. Step 5: Solve for x
    x = 403,433,199.78/22,158.96
  6. Step 6: Final answer
    x = 18,206.32

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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.