Home / 21,918.44-32,885.78-15,727.88

Finding the Fourth Proportional to 21,918.44, 32,885.78 and 15,727.88

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Solution

The fourth proportional to 21,918.44, 32,885.78 and 15,727.88 is: 23,597.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,918.44 : 32,885.78 = 15,727.88 : x
  2. Step 2: Convert to fraction form
    21,918.44/32,885.78 = 15,727.88/x
  3. Step 3: Cross multiply
    21,918.44x = 32,885.78 × 15,727.88
  4. Step 4: Simplify right side
    21,918.44x = 517,223,601.55
  5. Step 5: Solve for x
    x = 517,223,601.55/21,918.44
  6. Step 6: Final answer
    x = 23,597.65

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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.