Home / 19,961.21-27,549.77-12,007.82

Finding the Fourth Proportional to 19,961.21, 27,549.77 and 12,007.82

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Solution

The fourth proportional to 19,961.21, 27,549.77 and 12,007.82 is: 16,572.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961.21 : 27,549.77 = 12,007.82 : x
  2. Step 2: Convert to fraction form
    19,961.21/27,549.77 = 12,007.82/x
  3. Step 3: Cross multiply
    19,961.21x = 27,549.77 × 12,007.82
  4. Step 4: Simplify right side
    19,961.21x = 330,812,688.04
  5. Step 5: Solve for x
    x = 330,812,688.04/19,961.21
  6. Step 6: Final answer
    x = 16,572.78

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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.