Home / 19,379.48-29,064.36-8,280.68

Finding the Fourth Proportional to 19,379.48, 29,064.36 and 8,280.68

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Solution

The fourth proportional to 19,379.48, 29,064.36 and 8,280.68 is: 12,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,379.48 : 29,064.36 = 8,280.68 : x
  2. Step 2: Convert to fraction form
    19,379.48/29,064.36 = 8,280.68/x
  3. Step 3: Cross multiply
    19,379.48x = 29,064.36 × 8,280.68
  4. Step 4: Simplify right side
    19,379.48x = 240,672,664.56
  5. Step 5: Solve for x
    x = 240,672,664.56/19,379.48
  6. Step 6: Final answer
    x = 12,418.94

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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.