Home / 22,745.47-31,387.96-12,673.39

Finding the Fourth Proportional to 22,745.47, 31,387.96 and 12,673.39

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Solution

The fourth proportional to 22,745.47, 31,387.96 and 12,673.39 is: 17,488.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,745.47 : 31,387.96 = 12,673.39 : x
  2. Step 2: Convert to fraction form
    22,745.47/31,387.96 = 12,673.39/x
  3. Step 3: Cross multiply
    22,745.47x = 31,387.96 × 12,673.39
  4. Step 4: Simplify right side
    22,745.47x = 397,791,858.38
  5. Step 5: Solve for x
    x = 397,791,858.38/22,745.47
  6. Step 6: Final answer
    x = 17,488.84

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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.