Home / 22,608.76-31,201.68-12,538.16

Finding the Fourth Proportional to 22,608.76, 31,201.68 and 12,538.16

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Solution

The fourth proportional to 22,608.76, 31,201.68 and 12,538.16 is: 17,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,608.76 : 31,201.68 = 12,538.16 : x
  2. Step 2: Convert to fraction form
    22,608.76/31,201.68 = 12,538.16/x
  3. Step 3: Cross multiply
    22,608.76x = 31,201.68 × 12,538.16
  4. Step 4: Simplify right side
    22,608.76x = 391,211,781.13
  5. Step 5: Solve for x
    x = 391,211,781.13/22,608.76
  6. Step 6: Final answer
    x = 17,303.55

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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.