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Finding the Fourth Proportional to 21,954, 30,296.88 and 12,527.76

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Solution

The fourth proportional to 21,954, 30,296.88 and 12,527.76 is: 17,288.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954 : 30,296.88 = 12,527.76 : x
  2. Step 2: Convert to fraction form
    21,954/30,296.88 = 12,527.76/x
  3. Step 3: Cross multiply
    21,954x = 30,296.88 × 12,527.76
  4. Step 4: Simplify right side
    21,954x = 379,552,041.39
  5. Step 5: Solve for x
    x = 379,552,041.39/21,954
  6. Step 6: Final answer
    x = 17,288.51

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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.