Home / 22,542.10-31,133.62-15,359.56

Finding the Fourth Proportional to 22,542.10, 31,133.62 and 15,359.56

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Solution

The fourth proportional to 22,542.10, 31,133.62 and 15,359.56 is: 21,213.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,542.10 : 31,133.62 = 15,359.56 : x
  2. Step 2: Convert to fraction form
    22,542.10/31,133.62 = 15,359.56/x
  3. Step 3: Cross multiply
    22,542.10x = 31,133.62 × 15,359.56
  4. Step 4: Simplify right side
    22,542.10x = 478,198,704.41
  5. Step 5: Solve for x
    x = 478,198,704.41/22,542.10
  6. Step 6: Final answer
    x = 21,213.58

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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.