Home / 19,991.74-27,592.16-11,925.90

Finding the Fourth Proportional to 19,991.74, 27,592.16 and 11,925.90

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Solution

The fourth proportional to 19,991.74, 27,592.16 and 11,925.90 is: 16,459.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.74 : 27,592.16 = 11,925.90 : x
  2. Step 2: Convert to fraction form
    19,991.74/27,592.16 = 11,925.90/x
  3. Step 3: Cross multiply
    19,991.74x = 27,592.16 × 11,925.90
  4. Step 4: Simplify right side
    19,991.74x = 329,061,340.94
  5. Step 5: Solve for x
    x = 329,061,340.94/19,991.74
  6. Step 6: Final answer
    x = 16,459.86

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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.