Home / 21,080.32-31,593.22-8,585.73

Finding the Fourth Proportional to 21,080.32, 31,593.22 and 8,585.73

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Solution

The fourth proportional to 21,080.32, 31,593.22 and 8,585.73 is: 12,867.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080.32 : 31,593.22 = 8,585.73 : x
  2. Step 2: Convert to fraction form
    21,080.32/31,593.22 = 8,585.73/x
  3. Step 3: Cross multiply
    21,080.32x = 31,593.22 × 8,585.73
  4. Step 4: Simplify right side
    21,080.32x = 271,250,835.29
  5. Step 5: Solve for x
    x = 271,250,835.29/21,080.32
  6. Step 6: Final answer
    x = 12,867.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.