Home / 23,181.61-31,990.63-12,571.24

Finding the Fourth Proportional to 23,181.61, 31,990.63 and 12,571.24

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Solution

The fourth proportional to 23,181.61, 31,990.63 and 12,571.24 is: 17,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,181.61 : 31,990.63 = 12,571.24 : x
  2. Step 2: Convert to fraction form
    23,181.61/31,990.63 = 12,571.24/x
  3. Step 3: Cross multiply
    23,181.61x = 31,990.63 × 12,571.24
  4. Step 4: Simplify right side
    23,181.61x = 402,161,887.48
  5. Step 5: Solve for x
    x = 402,161,887.48/23,181.61
  6. Step 6: Final answer
    x = 17,348.32

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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.