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Finding the Fourth Proportional to 28,571.43, 42,859.96 and 9,849.00

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Solution

The fourth proportional to 28,571.43, 42,859.96 and 9,849.00 is: 14,774.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.43 : 42,859.96 = 9,849.00 : x
  2. Step 2: Convert to fraction form
    28,571.43/42,859.96 = 9,849.00/x
  3. Step 3: Cross multiply
    28,571.43x = 42,859.96 × 9,849.00
  4. Step 4: Simplify right side
    28,571.43x = 422,127,659.52
  5. Step 5: Solve for x
    x = 422,127,659.52/28,571.43
  6. Step 6: Final answer
    x = 14,774.47

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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.