Home / 22,745.36-31,390.20-12,674.48

Finding the Fourth Proportional to 22,745.36, 31,390.20 and 12,674.48

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Solution

The fourth proportional to 22,745.36, 31,390.20 and 12,674.48 is: 17,491.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,745.36 : 31,390.20 = 12,674.48 : x
  2. Step 2: Convert to fraction form
    22,745.36/31,390.20 = 12,674.48/x
  3. Step 3: Cross multiply
    22,745.36x = 31,390.20 × 12,674.48
  4. Step 4: Simplify right side
    22,745.36x = 397,854,462.10
  5. Step 5: Solve for x
    x = 397,854,462.10/22,745.36
  6. Step 6: Final answer
    x = 17,491.68

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Half scale
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Double scale
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Similar ratio
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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.