Home / 28,791.42-39,731.64-16,216.18

Finding the Fourth Proportional to 28,791.42, 39,731.64 and 16,216.18

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Solution

The fourth proportional to 28,791.42, 39,731.64 and 16,216.18 is: 22,378.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,791.42 : 39,731.64 = 16,216.18 : x
  2. Step 2: Convert to fraction form
    28,791.42/39,731.64 = 16,216.18/x
  3. Step 3: Cross multiply
    28,791.42x = 39,731.64 × 16,216.18
  4. Step 4: Simplify right side
    28,791.42x = 644,295,425.94
  5. Step 5: Solve for x
    x = 644,295,425.94/28,791.42
  6. Step 6: Final answer
    x = 22,378.04

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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.