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Finding the Fourth Proportional to 30,816.79, 46,251.11 and 28,872.79

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Solution

The fourth proportional to 30,816.79, 46,251.11 and 28,872.79 is: 43,333.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,816.79 : 46,251.11 = 28,872.79 : x
  2. Step 2: Convert to fraction form
    30,816.79/46,251.11 = 28,872.79/x
  3. Step 3: Cross multiply
    30,816.79x = 46,251.11 × 28,872.79
  4. Step 4: Simplify right side
    30,816.79x = 1,335,398,586.30
  5. Step 5: Solve for x
    x = 1,335,398,586.30/30,816.79
  6. Step 6: Final answer
    x = 43,333.47

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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.