Home / 20,006.55-27,611.18-11,509.04

Finding the Fourth Proportional to 20,006.55, 27,611.18 and 11,509.04

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Solution

The fourth proportional to 20,006.55, 27,611.18 and 11,509.04 is: 15,883.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,006.55 : 27,611.18 = 11,509.04 : x
  2. Step 2: Convert to fraction form
    20,006.55/27,611.18 = 11,509.04/x
  3. Step 3: Cross multiply
    20,006.55x = 27,611.18 × 11,509.04
  4. Step 4: Simplify right side
    20,006.55x = 317,778,229.71
  5. Step 5: Solve for x
    x = 317,778,229.71/20,006.55
  6. Step 6: Final answer
    x = 15,883.71

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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.