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Finding the Fourth Proportional to 28,771.84, 43,235.84 and 15,633.92

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Solution

The fourth proportional to 28,771.84, 43,235.84 and 15,633.92 is: 23,493.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,771.84 : 43,235.84 = 15,633.92 : x
  2. Step 2: Convert to fraction form
    28,771.84/43,235.84 = 15,633.92/x
  3. Step 3: Cross multiply
    28,771.84x = 43,235.84 × 15,633.92
  4. Step 4: Simplify right side
    28,771.84x = 675,945,663.69
  5. Step 5: Solve for x
    x = 675,945,663.69/28,771.84
  6. Step 6: Final answer
    x = 23,493.31

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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.