Home / 20,773.82-28,664.49-12,274.76

Finding the Fourth Proportional to 20,773.82, 28,664.49 and 12,274.76

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Solution

The fourth proportional to 20,773.82, 28,664.49 and 12,274.76 is: 16,937.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.82 : 28,664.49 = 12,274.76 : x
  2. Step 2: Convert to fraction form
    20,773.82/28,664.49 = 12,274.76/x
  3. Step 3: Cross multiply
    20,773.82x = 28,664.49 × 12,274.76
  4. Step 4: Simplify right side
    20,773.82x = 351,849,852.96
  5. Step 5: Solve for x
    x = 351,849,852.96/20,773.82
  6. Step 6: Final answer
    x = 16,937.17

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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.