Home / 19,770.48-29,654.66-4,979.37

Finding the Fourth Proportional to 19,770.48, 29,654.66 and 4,979.37

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Solution

The fourth proportional to 19,770.48, 29,654.66 and 4,979.37 is: 7,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,770.48 : 29,654.66 = 4,979.37 : x
  2. Step 2: Convert to fraction form
    19,770.48/29,654.66 = 4,979.37/x
  3. Step 3: Cross multiply
    19,770.48x = 29,654.66 × 4,979.37
  4. Step 4: Simplify right side
    19,770.48x = 147,661,499.47
  5. Step 5: Solve for x
    x = 147,661,499.47/19,770.48
  6. Step 6: Final answer
    x = 7,468.79

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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.