Home / 20,008.40-27,611.42-11,056.50

Finding the Fourth Proportional to 20,008.40, 27,611.42 and 11,056.50

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Solution

The fourth proportional to 20,008.40, 27,611.42 and 11,056.50 is: 15,257.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.40 : 27,611.42 = 11,056.50 : x
  2. Step 2: Convert to fraction form
    20,008.40/27,611.42 = 11,056.50/x
  3. Step 3: Cross multiply
    20,008.40x = 27,611.42 × 11,056.50
  4. Step 4: Simplify right side
    20,008.40x = 305,285,665.23
  5. Step 5: Solve for x
    x = 305,285,665.23/20,008.40
  6. Step 6: Final answer
    x = 15,257.87

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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.