Home / 42,356.45-63,493.35-20,163.86

Finding the Fourth Proportional to 42,356.45, 63,493.35 and 20,163.86

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Solution

The fourth proportional to 42,356.45, 63,493.35 and 20,163.86 is: 30,226.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,356.45 : 63,493.35 = 20,163.86 : x
  2. Step 2: Convert to fraction form
    42,356.45/63,493.35 = 20,163.86/x
  3. Step 3: Cross multiply
    42,356.45x = 63,493.35 × 20,163.86
  4. Step 4: Simplify right side
    42,356.45x = 1,280,271,020.33
  5. Step 5: Solve for x
    x = 1,280,271,020.33/42,356.45
  6. Step 6: Final answer
    x = 30,226.12

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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.