Home / 28,266.44-39,006.16-15,690.38

Finding the Fourth Proportional to 28,266.44, 39,006.16 and 15,690.38

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Solution

The fourth proportional to 28,266.44, 39,006.16 and 15,690.38 is: 21,651.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266.44 : 39,006.16 = 15,690.38 : x
  2. Step 2: Convert to fraction form
    28,266.44/39,006.16 = 15,690.38/x
  3. Step 3: Cross multiply
    28,266.44x = 39,006.16 × 15,690.38
  4. Step 4: Simplify right side
    28,266.44x = 612,021,238.48
  5. Step 5: Solve for x
    x = 612,021,238.48/28,266.44
  6. Step 6: Final answer
    x = 21,651.87

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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.