Home / 21,942.50-30,280.66-12,006.50

Finding the Fourth Proportional to 21,942.50, 30,280.66 and 12,006.50

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Solution

The fourth proportional to 21,942.50, 30,280.66 and 12,006.50 is: 16,568.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942.50 : 30,280.66 = 12,006.50 : x
  2. Step 2: Convert to fraction form
    21,942.50/30,280.66 = 12,006.50/x
  3. Step 3: Cross multiply
    21,942.50x = 30,280.66 × 12,006.50
  4. Step 4: Simplify right side
    21,942.50x = 363,564,744.29
  5. Step 5: Solve for x
    x = 363,564,744.29/21,942.50
  6. Step 6: Final answer
    x = 16,568.98

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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.