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Finding the Fourth Proportional to 36,536.49, 50,430.87 and 21,429.79

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Solution

The fourth proportional to 36,536.49, 50,430.87 and 21,429.79 is: 29,579.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,536.49 : 50,430.87 = 21,429.79 : x
  2. Step 2: Convert to fraction form
    36,536.49/50,430.87 = 21,429.79/x
  3. Step 3: Cross multiply
    36,536.49x = 50,430.87 × 21,429.79
  4. Step 4: Simplify right side
    36,536.49x = 1,080,722,827.54
  5. Step 5: Solve for x
    x = 1,080,722,827.54/36,536.49
  6. Step 6: Final answer
    x = 29,579.27

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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.