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Finding the Fourth Proportional to 19,939.59, 29,881.04 and 8,842.59

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Solution

The fourth proportional to 19,939.59, 29,881.04 and 8,842.59 is: 13,251.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.59 : 29,881.04 = 8,842.59 : x
  2. Step 2: Convert to fraction form
    19,939.59/29,881.04 = 8,842.59/x
  3. Step 3: Cross multiply
    19,939.59x = 29,881.04 × 8,842.59
  4. Step 4: Simplify right side
    19,939.59x = 264,225,741.28
  5. Step 5: Solve for x
    x = 264,225,741.28/19,939.59
  6. Step 6: Final answer
    x = 13,251.31

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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.