Home / 28,747.44-39,672.76-16,172.20

Finding the Fourth Proportional to 28,747.44, 39,672.76 and 16,172.20

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Solution

The fourth proportional to 28,747.44, 39,672.76 and 16,172.20 is: 22,318.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.44 : 39,672.76 = 16,172.20 : x
  2. Step 2: Convert to fraction form
    28,747.44/39,672.76 = 16,172.20/x
  3. Step 3: Cross multiply
    28,747.44x = 39,672.76 × 16,172.20
  4. Step 4: Simplify right side
    28,747.44x = 641,595,809.27
  5. Step 5: Solve for x
    x = 641,595,809.27/28,747.44
  6. Step 6: Final answer
    x = 22,318.36

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1.5x scale

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.