Home / 28,657.58-39,545.68-15,910.02

Finding the Fourth Proportional to 28,657.58, 39,545.68 and 15,910.02

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Solution

The fourth proportional to 28,657.58, 39,545.68 and 15,910.02 is: 21,954.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,657.58 : 39,545.68 = 15,910.02 : x
  2. Step 2: Convert to fraction form
    28,657.58/39,545.68 = 15,910.02/x
  3. Step 3: Cross multiply
    28,657.58x = 39,545.68 × 15,910.02
  4. Step 4: Simplify right side
    28,657.58x = 629,172,519.94
  5. Step 5: Solve for x
    x = 629,172,519.94/28,657.58
  6. Step 6: Final answer
    x = 21,954.84

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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.