Home / 18,071.57-27,123.56-15,128.44

Finding the Fourth Proportional to 18,071.57, 27,123.56 and 15,128.44

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Solution

The fourth proportional to 18,071.57, 27,123.56 and 15,128.44 is: 22,706.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,071.57 : 27,123.56 = 15,128.44 : x
  2. Step 2: Convert to fraction form
    18,071.57/27,123.56 = 15,128.44/x
  3. Step 3: Cross multiply
    18,071.57x = 27,123.56 × 15,128.44
  4. Step 4: Simplify right side
    18,071.57x = 410,337,150.05
  5. Step 5: Solve for x
    x = 410,337,150.05/18,071.57
  6. Step 6: Final answer
    x = 22,706.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.