Home / 28,286.28-42,391.62-15,110.28

Finding the Fourth Proportional to 28,286.28, 42,391.62 and 15,110.28

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Solution

The fourth proportional to 28,286.28, 42,391.62 and 15,110.28 is: 22,645.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,286.28 : 42,391.62 = 15,110.28 : x
  2. Step 2: Convert to fraction form
    28,286.28/42,391.62 = 15,110.28/x
  3. Step 3: Cross multiply
    28,286.28x = 42,391.62 × 15,110.28
  4. Step 4: Simplify right side
    28,286.28x = 640,549,247.85
  5. Step 5: Solve for x
    x = 640,549,247.85/28,286.28
  6. Step 6: Final answer
    x = 22,645.23

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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.