Home / 28,743.30-39,667.05-16,168.05

Finding the Fourth Proportional to 28,743.30, 39,667.05 and 16,168.05

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Solution

The fourth proportional to 28,743.30, 39,667.05 and 16,168.05 is: 22,312.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,743.30 : 39,667.05 = 16,168.05 : x
  2. Step 2: Convert to fraction form
    28,743.30/39,667.05 = 16,168.05/x
  3. Step 3: Cross multiply
    28,743.30x = 39,667.05 × 16,168.05
  4. Step 4: Simplify right side
    28,743.30x = 641,338,847.75
  5. Step 5: Solve for x
    x = 641,338,847.75/28,743.30
  6. Step 6: Final answer
    x = 22,312.64

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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.