Home / 19,917.48-29,881.98-8,224.68

Finding the Fourth Proportional to 19,917.48, 29,881.98 and 8,224.68

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Solution

The fourth proportional to 19,917.48, 29,881.98 and 8,224.68 is: 12,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.48 : 29,881.98 = 8,224.68 : x
  2. Step 2: Convert to fraction form
    19,917.48/29,881.98 = 8,224.68/x
  3. Step 3: Cross multiply
    19,917.48x = 29,881.98 × 8,224.68
  4. Step 4: Simplify right side
    19,917.48x = 245,769,723.27
  5. Step 5: Solve for x
    x = 245,769,723.27/19,917.48
  6. Step 6: Final answer
    x = 12,339.40

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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.