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Finding the Fourth Proportional to 36,521, 50,398.98 and 21,617

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Solution

The fourth proportional to 36,521, 50,398.98 and 21,617 is: 29,831.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,521 : 50,398.98 = 21,617 : x
  2. Step 2: Convert to fraction form
    36,521/50,398.98 = 21,617/x
  3. Step 3: Cross multiply
    36,521x = 50,398.98 × 21,617
  4. Step 4: Simplify right side
    36,521x = 1,089,474,750.66
  5. Step 5: Solve for x
    x = 1,089,474,750.66/36,521
  6. Step 6: Final answer
    x = 29,831.46

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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.