Home / 22,259.12-30,718.44-12,186.92

Finding the Fourth Proportional to 22,259.12, 30,718.44 and 12,186.92

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Solution

The fourth proportional to 22,259.12, 30,718.44 and 12,186.92 is: 16,818.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,259.12 : 30,718.44 = 12,186.92 : x
  2. Step 2: Convert to fraction form
    22,259.12/30,718.44 = 12,186.92/x
  3. Step 3: Cross multiply
    22,259.12x = 30,718.44 × 12,186.92
  4. Step 4: Simplify right side
    22,259.12x = 374,363,170.80
  5. Step 5: Solve for x
    x = 374,363,170.80/22,259.12
  6. Step 6: Final answer
    x = 16,818.42

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Half scale
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Double scale
Find fourth proportional to 22,260.12, 30,719.82 and 12,187.92
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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.