Home / 28,270.85-39,007.31-16,942.42

Finding the Fourth Proportional to 28,270.85, 39,007.31 and 16,942.42

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Solution

The fourth proportional to 28,270.85, 39,007.31 and 16,942.42 is: 23,376.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,270.85 : 39,007.31 = 16,942.42 : x
  2. Step 2: Convert to fraction form
    28,270.85/39,007.31 = 16,942.42/x
  3. Step 3: Cross multiply
    28,270.85x = 39,007.31 × 16,942.42
  4. Step 4: Simplify right side
    28,270.85x = 660,878,045.20
  5. Step 5: Solve for x
    x = 660,878,045.20/28,270.85
  6. Step 6: Final answer
    x = 23,376.66

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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.