Home / 43,115.61-64,651.50-19,722

Finding the Fourth Proportional to 43,115.61, 64,651.50 and 19,722

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Solution

The fourth proportional to 43,115.61, 64,651.50 and 19,722 is: 29,572.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,115.61 : 64,651.50 = 19,722 : x
  2. Step 2: Convert to fraction form
    43,115.61/64,651.50 = 19,722/x
  3. Step 3: Cross multiply
    43,115.61x = 64,651.50 × 19,722
  4. Step 4: Simplify right side
    43,115.61x = 1,275,056,883
  5. Step 5: Solve for x
    x = 1,275,056,883/43,115.61
  6. Step 6: Final answer
    x = 29,572.98

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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.