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Finding the Fourth Proportional to 36,426, 50,264.10 and 21,317.88

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Solution

The fourth proportional to 36,426, 50,264.10 and 21,317.88 is: 29,416.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,426 : 50,264.10 = 21,317.88 : x
  2. Step 2: Convert to fraction form
    36,426/50,264.10 = 21,317.88/x
  3. Step 3: Cross multiply
    36,426x = 50,264.10 × 21,317.88
  4. Step 4: Simplify right side
    36,426x = 1,071,524,052.11
  5. Step 5: Solve for x
    x = 1,071,524,052.11/36,426
  6. Step 6: Final answer
    x = 29,416.46

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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.