Home / 22,712.43-31,336.56-13,155.24

Finding the Fourth Proportional to 22,712.43, 31,336.56 and 13,155.24

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Solution

The fourth proportional to 22,712.43, 31,336.56 and 13,155.24 is: 18,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,712.43 : 31,336.56 = 13,155.24 : x
  2. Step 2: Convert to fraction form
    22,712.43/31,336.56 = 13,155.24/x
  3. Step 3: Cross multiply
    22,712.43x = 31,336.56 × 13,155.24
  4. Step 4: Simplify right side
    22,712.43x = 412,239,967.57
  5. Step 5: Solve for x
    x = 412,239,967.57/22,712.43
  6. Step 6: Final answer
    x = 18,150.41

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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.