Home / 19,415.86-29,118.48-5,372.53

Finding the Fourth Proportional to 19,415.86, 29,118.48 and 5,372.53

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Solution

The fourth proportional to 19,415.86, 29,118.48 and 5,372.53 is: 8,057.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415.86 : 29,118.48 = 5,372.53 : x
  2. Step 2: Convert to fraction form
    19,415.86/29,118.48 = 5,372.53/x
  3. Step 3: Cross multiply
    19,415.86x = 29,118.48 × 5,372.53
  4. Step 4: Simplify right side
    19,415.86x = 156,439,907.35
  5. Step 5: Solve for x
    x = 156,439,907.35/19,415.86
  6. Step 6: Final answer
    x = 8,057.33

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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.