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Finding the Fourth Proportional to 21,074.92, 31,612.26 and 8,594.88

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Solution

The fourth proportional to 21,074.92, 31,612.26 and 8,594.88 is: 12,892.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.92 : 31,612.26 = 8,594.88 : x
  2. Step 2: Convert to fraction form
    21,074.92/31,612.26 = 8,594.88/x
  3. Step 3: Cross multiply
    21,074.92x = 31,612.26 × 8,594.88
  4. Step 4: Simplify right side
    21,074.92x = 271,703,581.23
  5. Step 5: Solve for x
    x = 271,703,581.23/21,074.92
  6. Step 6: Final answer
    x = 12,892.27

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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.