Home / 28,743.75-39,666.42-16,168.50

Finding the Fourth Proportional to 28,743.75, 39,666.42 and 16,168.50

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Solution

The fourth proportional to 28,743.75, 39,666.42 and 16,168.50 is: 22,312.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,743.75 : 39,666.42 = 16,168.50 : x
  2. Step 2: Convert to fraction form
    28,743.75/39,666.42 = 16,168.50/x
  3. Step 3: Cross multiply
    28,743.75x = 39,666.42 × 16,168.50
  4. Step 4: Simplify right side
    28,743.75x = 641,346,511.77
  5. Step 5: Solve for x
    x = 641,346,511.77/28,743.75
  6. Step 6: Final answer
    x = 22,312.56

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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.