Home / 18,251.54-25,136.70-15,732.68

Finding the Fourth Proportional to 18,251.54, 25,136.70 and 15,732.68

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Solution

The fourth proportional to 18,251.54, 25,136.70 and 15,732.68 is: 21,667.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.54 : 25,136.70 = 15,732.68 : x
  2. Step 2: Convert to fraction form
    18,251.54/25,136.70 = 15,732.68/x
  3. Step 3: Cross multiply
    18,251.54x = 25,136.70 × 15,732.68
  4. Step 4: Simplify right side
    18,251.54x = 395,467,657.36
  5. Step 5: Solve for x
    x = 395,467,657.36/18,251.54
  6. Step 6: Final answer
    x = 21,667.63

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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.