Home / 28,295.35-42,447.42-8,569.21

Finding the Fourth Proportional to 28,295.35, 42,447.42 and 8,569.21

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Solution

The fourth proportional to 28,295.35, 42,447.42 and 8,569.21 is: 12,855.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,295.35 : 42,447.42 = 8,569.21 : x
  2. Step 2: Convert to fraction form
    28,295.35/42,447.42 = 8,569.21/x
  3. Step 3: Cross multiply
    28,295.35x = 42,447.42 × 8,569.21
  4. Step 4: Simplify right side
    28,295.35x = 363,740,855.94
  5. Step 5: Solve for x
    x = 363,740,855.94/28,295.35
  6. Step 6: Final answer
    x = 12,855.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.