Home / 20,212.05-30,272.97-15,497.36

Finding the Fourth Proportional to 20,212.05, 30,272.97 and 15,497.36

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Solution

The fourth proportional to 20,212.05, 30,272.97 and 15,497.36 is: 23,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.05 : 30,272.97 = 15,497.36 : x
  2. Step 2: Convert to fraction form
    20,212.05/30,272.97 = 15,497.36/x
  3. Step 3: Cross multiply
    20,212.05x = 30,272.97 × 15,497.36
  4. Step 4: Simplify right side
    20,212.05x = 469,150,962.99
  5. Step 5: Solve for x
    x = 469,150,962.99/20,212.05
  6. Step 6: Final answer
    x = 23,211.45

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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.