Home / 34,591.59-47,739.99-21,171.78

Finding the Fourth Proportional to 34,591.59, 47,739.99 and 21,171.78

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Solution

The fourth proportional to 34,591.59, 47,739.99 and 21,171.78 is: 29,219.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,591.59 : 47,739.99 = 21,171.78 : x
  2. Step 2: Convert to fraction form
    34,591.59/47,739.99 = 21,171.78/x
  3. Step 3: Cross multiply
    34,591.59x = 47,739.99 × 21,171.78
  4. Step 4: Simplify right side
    34,591.59x = 1,010,740,565.48
  5. Step 5: Solve for x
    x = 1,010,740,565.48/34,591.59
  6. Step 6: Final answer
    x = 29,219.26

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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.