Home / 23,120.73-31,906.68-12,510.36

Finding the Fourth Proportional to 23,120.73, 31,906.68 and 12,510.36

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Solution

The fourth proportional to 23,120.73, 31,906.68 and 12,510.36 is: 17,264.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,120.73 : 31,906.68 = 12,510.36 : x
  2. Step 2: Convert to fraction form
    23,120.73/31,906.68 = 12,510.36/x
  3. Step 3: Cross multiply
    23,120.73x = 31,906.68 × 12,510.36
  4. Step 4: Simplify right side
    23,120.73x = 399,164,053.20
  5. Step 5: Solve for x
    x = 399,164,053.20/23,120.73
  6. Step 6: Final answer
    x = 17,264.34

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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.