Home / 23,101.58-31,880.16-12,491.19

Finding the Fourth Proportional to 23,101.58, 31,880.16 and 12,491.19

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Solution

The fourth proportional to 23,101.58, 31,880.16 and 12,491.19 is: 17,237.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,101.58 : 31,880.16 = 12,491.19 : x
  2. Step 2: Convert to fraction form
    23,101.58/31,880.16 = 12,491.19/x
  3. Step 3: Cross multiply
    23,101.58x = 31,880.16 × 12,491.19
  4. Step 4: Simplify right side
    23,101.58x = 398,221,135.79
  5. Step 5: Solve for x
    x = 398,221,135.79/23,101.58
  6. Step 6: Final answer
    x = 17,237.83

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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.