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Finding the Fourth Proportional to 36,487.63, 50,352.78 and 19,720.63

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Solution

The fourth proportional to 36,487.63, 50,352.78 and 19,720.63 is: 27,214.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,487.63 : 50,352.78 = 19,720.63 : x
  2. Step 2: Convert to fraction form
    36,487.63/50,352.78 = 19,720.63/x
  3. Step 3: Cross multiply
    36,487.63x = 50,352.78 × 19,720.63
  4. Step 4: Simplify right side
    36,487.63x = 992,988,543.85
  5. Step 5: Solve for x
    x = 992,988,543.85/36,487.63
  6. Step 6: Final answer
    x = 27,214.39

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Double scale
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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.