Home / 19,781.48-29,672.13-8,094.70

Finding the Fourth Proportional to 19,781.48, 29,672.13 and 8,094.70

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Solution

The fourth proportional to 19,781.48, 29,672.13 and 8,094.70 is: 12,142.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,781.48 : 29,672.13 = 8,094.70 : x
  2. Step 2: Convert to fraction form
    19,781.48/29,672.13 = 8,094.70/x
  3. Step 3: Cross multiply
    19,781.48x = 29,672.13 × 8,094.70
  4. Step 4: Simplify right side
    19,781.48x = 240,186,997.45
  5. Step 5: Solve for x
    x = 240,186,997.45/19,781.48
  6. Step 6: Final answer
    x = 12,142.01

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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.