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Finding the Fourth Proportional to 47,339.64, 71,037 and 19,255.32

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Solution

The fourth proportional to 47,339.64, 71,037 and 19,255.32 is: 28,894.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,339.64 : 71,037 = 19,255.32 : x
  2. Step 2: Convert to fraction form
    47,339.64/71,037 = 19,255.32/x
  3. Step 3: Cross multiply
    47,339.64x = 71,037 × 19,255.32
  4. Step 4: Simplify right side
    47,339.64x = 1,367,840,166.84
  5. Step 5: Solve for x
    x = 1,367,840,166.84/47,339.64
  6. Step 6: Final answer
    x = 28,894.18

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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.