Home / 22,723.43-31,350.21-13,158.09

Finding the Fourth Proportional to 22,723.43, 31,350.21 and 13,158.09

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Solution

The fourth proportional to 22,723.43, 31,350.21 and 13,158.09 is: 18,153.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,723.43 : 31,350.21 = 13,158.09 : x
  2. Step 2: Convert to fraction form
    22,723.43/31,350.21 = 13,158.09/x
  3. Step 3: Cross multiply
    22,723.43x = 31,350.21 × 13,158.09
  4. Step 4: Simplify right side
    22,723.43x = 412,508,884.70
  5. Step 5: Solve for x
    x = 412,508,884.70/22,723.43
  6. Step 6: Final answer
    x = 18,153.46

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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.