Home / 34,712.80-47,879.29-21,289.41

Finding the Fourth Proportional to 34,712.80, 47,879.29 and 21,289.41

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Solution

The fourth proportional to 34,712.80, 47,879.29 and 21,289.41 is: 29,364.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,712.80 : 47,879.29 = 21,289.41 : x
  2. Step 2: Convert to fraction form
    34,712.80/47,879.29 = 21,289.41/x
  3. Step 3: Cross multiply
    34,712.80x = 47,879.29 × 21,289.41
  4. Step 4: Simplify right side
    34,712.80x = 1,019,321,835.32
  5. Step 5: Solve for x
    x = 1,019,321,835.32/34,712.80
  6. Step 6: Final answer
    x = 29,364.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.