Home / 28,820.94-39,771.51-16,245.66

Finding the Fourth Proportional to 28,820.94, 39,771.51 and 16,245.66

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Solution

The fourth proportional to 28,820.94, 39,771.51 and 16,245.66 is: 22,418.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.94 : 39,771.51 = 16,245.66 : x
  2. Step 2: Convert to fraction form
    28,820.94/39,771.51 = 16,245.66/x
  3. Step 3: Cross multiply
    28,820.94x = 39,771.51 × 16,245.66
  4. Step 4: Simplify right side
    28,820.94x = 646,114,429.15
  5. Step 5: Solve for x
    x = 646,114,429.15/28,820.94
  6. Step 6: Final answer
    x = 22,418.23

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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.