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Finding the Fourth Proportional to 28,959.77, 43,440.10 and 11,429.44

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Solution

The fourth proportional to 28,959.77, 43,440.10 and 11,429.44 is: 17,144.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,959.77 : 43,440.10 = 11,429.44 : x
  2. Step 2: Convert to fraction form
    28,959.77/43,440.10 = 11,429.44/x
  3. Step 3: Cross multiply
    28,959.77x = 43,440.10 × 11,429.44
  4. Step 4: Simplify right side
    28,959.77x = 496,495,879.37
  5. Step 5: Solve for x
    x = 496,495,879.37/28,959.77
  6. Step 6: Final answer
    x = 17,144.33

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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.