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Finding the Fourth Proportional to 19,238.32, 28,857.32 and 10,922.16

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Solution

The fourth proportional to 19,238.32, 28,857.32 and 10,922.16 is: 16,383.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238.32 : 28,857.32 = 10,922.16 : x
  2. Step 2: Convert to fraction form
    19,238.32/28,857.32 = 10,922.16/x
  3. Step 3: Cross multiply
    19,238.32x = 28,857.32 × 10,922.16
  4. Step 4: Simplify right side
    19,238.32x = 315,184,266.21
  5. Step 5: Solve for x
    x = 315,184,266.21/19,238.32
  6. Step 6: Final answer
    x = 16,383.15

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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.