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Finding the Fourth Proportional to 21,809.06, 32,723.30 and 7,954.82

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Solution

The fourth proportional to 21,809.06, 32,723.30 and 7,954.82 is: 11,935.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,809.06 : 32,723.30 = 7,954.82 : x
  2. Step 2: Convert to fraction form
    21,809.06/32,723.30 = 7,954.82/x
  3. Step 3: Cross multiply
    21,809.06x = 32,723.30 × 7,954.82
  4. Step 4: Simplify right side
    21,809.06x = 260,307,797.69
  5. Step 5: Solve for x
    x = 260,307,797.69/21,809.06
  6. Step 6: Final answer
    x = 11,935.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.