Home / 28,265.68-39,006.66-15,690.52

Finding the Fourth Proportional to 28,265.68, 39,006.66 and 15,690.52

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Solution

The fourth proportional to 28,265.68, 39,006.66 and 15,690.52 is: 21,652.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,265.68 : 39,006.66 = 15,690.52 : x
  2. Step 2: Convert to fraction form
    28,265.68/39,006.66 = 15,690.52/x
  3. Step 3: Cross multiply
    28,265.68x = 39,006.66 × 15,690.52
  4. Step 4: Simplify right side
    28,265.68x = 612,034,778.86
  5. Step 5: Solve for x
    x = 612,034,778.86/28,265.68
  6. Step 6: Final answer
    x = 21,652.93

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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.