Home / 42,226.90-63,336.71-12,651.37

Finding the Fourth Proportional to 42,226.90, 63,336.71 and 12,651.37

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Solution

The fourth proportional to 42,226.90, 63,336.71 and 12,651.37 is: 18,975.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,226.90 : 63,336.71 = 12,651.37 : x
  2. Step 2: Convert to fraction form
    42,226.90/63,336.71 = 12,651.37/x
  3. Step 3: Cross multiply
    42,226.90x = 63,336.71 × 12,651.37
  4. Step 4: Simplify right side
    42,226.90x = 801,296,089.54
  5. Step 5: Solve for x
    x = 801,296,089.54/42,226.90
  6. Step 6: Final answer
    x = 18,975.96

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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.