Home / 28,820.69-39,772.55-16,245.44

Finding the Fourth Proportional to 28,820.69, 39,772.55 and 16,245.44

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Solution

The fourth proportional to 28,820.69, 39,772.55 and 16,245.44 is: 22,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.69 : 39,772.55 = 16,245.44 : x
  2. Step 2: Convert to fraction form
    28,820.69/39,772.55 = 16,245.44/x
  3. Step 3: Cross multiply
    28,820.69x = 39,772.55 × 16,245.44
  4. Step 4: Simplify right side
    28,820.69x = 646,122,574.67
  5. Step 5: Solve for x
    x = 646,122,574.67/28,820.69
  6. Step 6: Final answer
    x = 22,418.71

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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.