Home / 22,548.31-31,122.93-13,118.69

Finding the Fourth Proportional to 22,548.31, 31,122.93 and 13,118.69

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Solution

The fourth proportional to 22,548.31, 31,122.93 and 13,118.69 is: 18,107.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,548.31 : 31,122.93 = 13,118.69 : x
  2. Step 2: Convert to fraction form
    22,548.31/31,122.93 = 13,118.69/x
  3. Step 3: Cross multiply
    22,548.31x = 31,122.93 × 13,118.69
  4. Step 4: Simplify right side
    22,548.31x = 408,292,197.56
  5. Step 5: Solve for x
    x = 408,292,197.56/22,548.31
  6. Step 6: Final answer
    x = 18,107.44

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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.