Home / 22,722.05-31,358.19-13,165.01

Finding the Fourth Proportional to 22,722.05, 31,358.19 and 13,165.01

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Solution

The fourth proportional to 22,722.05, 31,358.19 and 13,165.01 is: 18,168.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,722.05 : 31,358.19 = 13,165.01 : x
  2. Step 2: Convert to fraction form
    22,722.05/31,358.19 = 13,165.01/x
  3. Step 3: Cross multiply
    22,722.05x = 31,358.19 × 13,165.01
  4. Step 4: Simplify right side
    22,722.05x = 412,830,997.44
  5. Step 5: Solve for x
    x = 412,830,997.44/22,722.05
  6. Step 6: Final answer
    x = 18,168.74

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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.