Home / 28,170.24-42,226.04-9,436.16

Finding the Fourth Proportional to 28,170.24, 42,226.04 and 9,436.16

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Solution

The fourth proportional to 28,170.24, 42,226.04 and 9,436.16 is: 14,144.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,170.24 : 42,226.04 = 9,436.16 : x
  2. Step 2: Convert to fraction form
    28,170.24/42,226.04 = 9,436.16/x
  3. Step 3: Cross multiply
    28,170.24x = 42,226.04 × 9,436.16
  4. Step 4: Simplify right side
    28,170.24x = 398,451,669.61
  5. Step 5: Solve for x
    x = 398,451,669.61/28,170.24
  6. Step 6: Final answer
    x = 14,144.42

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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.