Home / 21,723.59-32,578.50-11,190.35

Finding the Fourth Proportional to 21,723.59, 32,578.50 and 11,190.35

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Solution

The fourth proportional to 21,723.59, 32,578.50 and 11,190.35 is: 16,781.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,723.59 : 32,578.50 = 11,190.35 : x
  2. Step 2: Convert to fraction form
    21,723.59/32,578.50 = 11,190.35/x
  3. Step 3: Cross multiply
    21,723.59x = 32,578.50 × 11,190.35
  4. Step 4: Simplify right side
    21,723.59x = 364,564,940.89
  5. Step 5: Solve for x
    x = 364,564,940.89/21,723.59
  6. Step 6: Final answer
    x = 16,781.98

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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.