Home / 21,753.66-30,020.02-12,193.61

Finding the Fourth Proportional to 21,753.66, 30,020.02 and 12,193.61

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Solution

The fourth proportional to 21,753.66, 30,020.02 and 12,193.61 is: 16,827.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,753.66 : 30,020.02 = 12,193.61 : x
  2. Step 2: Convert to fraction form
    21,753.66/30,020.02 = 12,193.61/x
  3. Step 3: Cross multiply
    21,753.66x = 30,020.02 × 12,193.61
  4. Step 4: Simplify right side
    21,753.66x = 366,052,416.07
  5. Step 5: Solve for x
    x = 366,052,416.07/21,753.66
  6. Step 6: Final answer
    x = 16,827.16

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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.