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Finding the Fourth Proportional to 27,199.94, 40,809.15 and 8,484.21

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Solution

The fourth proportional to 27,199.94, 40,809.15 and 8,484.21 is: 12,729.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,199.94 : 40,809.15 = 8,484.21 : x
  2. Step 2: Convert to fraction form
    27,199.94/40,809.15 = 8,484.21/x
  3. Step 3: Cross multiply
    27,199.94x = 40,809.15 × 8,484.21
  4. Step 4: Simplify right side
    27,199.94x = 346,233,398.52
  5. Step 5: Solve for x
    x = 346,233,398.52/27,199.94
  6. Step 6: Final answer
    x = 12,729.20

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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.