Home / 19,989.67-27,586.83-11,037.15

Finding the Fourth Proportional to 19,989.67, 27,586.83 and 11,037.15

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Solution

The fourth proportional to 19,989.67, 27,586.83 and 11,037.15 is: 15,231.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989.67 : 27,586.83 = 11,037.15 : x
  2. Step 2: Convert to fraction form
    19,989.67/27,586.83 = 11,037.15/x
  3. Step 3: Cross multiply
    19,989.67x = 27,586.83 × 11,037.15
  4. Step 4: Simplify right side
    19,989.67x = 304,479,787.61
  5. Step 5: Solve for x
    x = 304,479,787.61/19,989.67
  6. Step 6: Final answer
    x = 15,231.86

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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.