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Finding the Fourth Proportional to 30,292.28, 41,801.24 and 18,961.28

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Solution

The fourth proportional to 30,292.28, 41,801.24 and 18,961.28 is: 26,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,292.28 : 41,801.24 = 18,961.28 : x
  2. Step 2: Convert to fraction form
    30,292.28/41,801.24 = 18,961.28/x
  3. Step 3: Cross multiply
    30,292.28x = 41,801.24 × 18,961.28
  4. Step 4: Simplify right side
    30,292.28x = 792,605,015.99
  5. Step 5: Solve for x
    x = 792,605,015.99/30,292.28
  6. Step 6: Final answer
    x = 26,165.25

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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.