Home / 34,394.60-51,543.30-21,207.80

Finding the Fourth Proportional to 34,394.60, 51,543.30 and 21,207.80

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Solution

The fourth proportional to 34,394.60, 51,543.30 and 21,207.80 is: 31,781.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,394.60 : 51,543.30 = 21,207.80 : x
  2. Step 2: Convert to fraction form
    34,394.60/51,543.30 = 21,207.80/x
  3. Step 3: Cross multiply
    34,394.60x = 51,543.30 × 21,207.80
  4. Step 4: Simplify right side
    34,394.60x = 1,093,119,997.74
  5. Step 5: Solve for x
    x = 1,093,119,997.74/34,394.60
  6. Step 6: Final answer
    x = 31,781.73

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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.