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Finding the Fourth Proportional to 36,721.35, 50,663.50 and 21,404.40

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Solution

The fourth proportional to 36,721.35, 50,663.50 and 21,404.40 is: 29,531.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,721.35 : 50,663.50 = 21,404.40 : x
  2. Step 2: Convert to fraction form
    36,721.35/50,663.50 = 21,404.40/x
  3. Step 3: Cross multiply
    36,721.35x = 50,663.50 × 21,404.40
  4. Step 4: Simplify right side
    36,721.35x = 1,084,421,575.90
  5. Step 5: Solve for x
    x = 1,084,421,575.90/36,721.35
  6. Step 6: Final answer
    x = 29,531.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.