Home / 22,128.96-30,538.08-12,192.96

Finding the Fourth Proportional to 22,128.96, 30,538.08 and 12,192.96

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Solution

The fourth proportional to 22,128.96, 30,538.08 and 12,192.96 is: 16,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,128.96 : 30,538.08 = 12,192.96 : x
  2. Step 2: Convert to fraction form
    22,128.96/30,538.08 = 12,192.96/x
  3. Step 3: Cross multiply
    22,128.96x = 30,538.08 × 12,192.96
  4. Step 4: Simplify right side
    22,128.96x = 372,349,587.92
  5. Step 5: Solve for x
    x = 372,349,587.92/22,128.96
  6. Step 6: Final answer
    x = 16,826.35

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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.