Home / 20,122.05-30,202.94-15,106.98

Finding the Fourth Proportional to 20,122.05, 30,202.94 and 15,106.98

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Solution

The fourth proportional to 20,122.05, 30,202.94 and 15,106.98 is: 22,675.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.05 : 30,202.94 = 15,106.98 : x
  2. Step 2: Convert to fraction form
    20,122.05/30,202.94 = 15,106.98/x
  3. Step 3: Cross multiply
    20,122.05x = 30,202.94 × 15,106.98
  4. Step 4: Simplify right side
    20,122.05x = 456,275,210.52
  5. Step 5: Solve for x
    x = 456,275,210.52/20,122.05
  6. Step 6: Final answer
    x = 22,675.38

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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.