Home / 22,238.64-30,689.34-12,166.92

Finding the Fourth Proportional to 22,238.64, 30,689.34 and 12,166.92

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Solution

The fourth proportional to 22,238.64, 30,689.34 and 12,166.92 is: 16,790.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,238.64 : 30,689.34 = 12,166.92 : x
  2. Step 2: Convert to fraction form
    22,238.64/30,689.34 = 12,166.92/x
  3. Step 3: Cross multiply
    22,238.64x = 30,689.34 × 12,166.92
  4. Step 4: Simplify right side
    22,238.64x = 373,394,744.63
  5. Step 5: Solve for x
    x = 373,394,744.63/22,238.64
  6. Step 6: Final answer
    x = 16,790.36

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Half scale
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Double scale
Find fourth proportional to 22,239.64, 30,690.72 and 12,167.92
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.