Home / 28,049.27-42,076.23-20,188.38

Finding the Fourth Proportional to 28,049.27, 42,076.23 and 20,188.38

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Solution

The fourth proportional to 28,049.27, 42,076.23 and 20,188.38 is: 30,284.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,049.27 : 42,076.23 = 20,188.38 : x
  2. Step 2: Convert to fraction form
    28,049.27/42,076.23 = 20,188.38/x
  3. Step 3: Cross multiply
    28,049.27x = 42,076.23 × 20,188.38
  4. Step 4: Simplify right side
    28,049.27x = 849,450,920.21
  5. Step 5: Solve for x
    x = 849,450,920.21/28,049.27
  6. Step 6: Final answer
    x = 30,284.24

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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.