Home / 47,979.52-71,940-19,877.44

Finding the Fourth Proportional to 47,979.52, 71,940 and 19,877.44

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Solution

The fourth proportional to 47,979.52, 71,940 and 19,877.44 is: 29,804.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,979.52 : 71,940 = 19,877.44 : x
  2. Step 2: Convert to fraction form
    47,979.52/71,940 = 19,877.44/x
  3. Step 3: Cross multiply
    47,979.52x = 71,940 × 19,877.44
  4. Step 4: Simplify right side
    47,979.52x = 1,429,983,033.60
  5. Step 5: Solve for x
    x = 1,429,983,033.60/47,979.52
  6. Step 6: Final answer
    x = 29,804.03

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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.