Home / 22,553.76-31,125.36-13,124.64

Finding the Fourth Proportional to 22,553.76, 31,125.36 and 13,124.64

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Solution

The fourth proportional to 22,553.76, 31,125.36 and 13,124.64 is: 18,112.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,553.76 : 31,125.36 = 13,124.64 : x
  2. Step 2: Convert to fraction form
    22,553.76/31,125.36 = 13,124.64/x
  3. Step 3: Cross multiply
    22,553.76x = 31,125.36 × 13,124.64
  4. Step 4: Simplify right side
    22,553.76x = 408,509,144.87
  5. Step 5: Solve for x
    x = 408,509,144.87/22,553.76
  6. Step 6: Final answer
    x = 18,112.68

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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.