Home / 21,808.20-30,095.46-12,376.92

Finding the Fourth Proportional to 21,808.20, 30,095.46 and 12,376.92

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Solution

The fourth proportional to 21,808.20, 30,095.46 and 12,376.92 is: 17,080.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,808.20 : 30,095.46 = 12,376.92 : x
  2. Step 2: Convert to fraction form
    21,808.20/30,095.46 = 12,376.92/x
  3. Step 3: Cross multiply
    21,808.20x = 30,095.46 × 12,376.92
  4. Step 4: Simplify right side
    21,808.20x = 372,489,100.78
  5. Step 5: Solve for x
    x = 372,489,100.78/21,808.20
  6. Step 6: Final answer
    x = 17,080.23

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.