Home / 30,163.86-45,270.68-15,175.22

Finding the Fourth Proportional to 30,163.86, 45,270.68 and 15,175.22

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Solution

The fourth proportional to 30,163.86, 45,270.68 and 15,175.22 is: 22,775.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,163.86 : 45,270.68 = 15,175.22 : x
  2. Step 2: Convert to fraction form
    30,163.86/45,270.68 = 15,175.22/x
  3. Step 3: Cross multiply
    30,163.86x = 45,270.68 × 15,175.22
  4. Step 4: Simplify right side
    30,163.86x = 686,992,226.32
  5. Step 5: Solve for x
    x = 686,992,226.32/30,163.86
  6. Step 6: Final answer
    x = 22,775.34

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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.