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Finding the Fourth Proportional to 28,950.80, 43,353.30 and 23,118.80

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Solution

The fourth proportional to 28,950.80, 43,353.30 and 23,118.80 is: 34,619.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,950.80 : 43,353.30 = 23,118.80 : x
  2. Step 2: Convert to fraction form
    28,950.80/43,353.30 = 23,118.80/x
  3. Step 3: Cross multiply
    28,950.80x = 43,353.30 × 23,118.80
  4. Step 4: Simplify right side
    28,950.80x = 1,002,276,272.04
  5. Step 5: Solve for x
    x = 1,002,276,272.04/28,950.80
  6. Step 6: Final answer
    x = 34,619.99

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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.