Home / 42,518.21-63,735.96-20,325.83

Finding the Fourth Proportional to 42,518.21, 63,735.96 and 20,325.83

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Solution

The fourth proportional to 42,518.21, 63,735.96 and 20,325.83 is: 30,468.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,518.21 : 63,735.96 = 20,325.83 : x
  2. Step 2: Convert to fraction form
    42,518.21/63,735.96 = 20,325.83/x
  3. Step 3: Cross multiply
    42,518.21x = 63,735.96 × 20,325.83
  4. Step 4: Simplify right side
    42,518.21x = 1,295,486,287.85
  5. Step 5: Solve for x
    x = 1,295,486,287.85/42,518.21
  6. Step 6: Final answer
    x = 30,468.98

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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.