Home / 22,666.21-31,269.30-15,105.17

Finding the Fourth Proportional to 22,666.21, 31,269.30 and 15,105.17

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Solution

The fourth proportional to 22,666.21, 31,269.30 and 15,105.17 is: 20,838.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,666.21 : 31,269.30 = 15,105.17 : x
  2. Step 2: Convert to fraction form
    22,666.21/31,269.30 = 15,105.17/x
  3. Step 3: Cross multiply
    22,666.21x = 31,269.30 × 15,105.17
  4. Step 4: Simplify right side
    22,666.21x = 472,328,092.28
  5. Step 5: Solve for x
    x = 472,328,092.28/22,666.21
  6. Step 6: Final answer
    x = 20,838.43

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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.