Home / 43,336.47-65,015.64-19,979.31

Finding the Fourth Proportional to 43,336.47, 65,015.64 and 19,979.31

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Solution

The fourth proportional to 43,336.47, 65,015.64 and 19,979.31 is: 29,974.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,336.47 : 65,015.64 = 19,979.31 : x
  2. Step 2: Convert to fraction form
    43,336.47/65,015.64 = 19,979.31/x
  3. Step 3: Cross multiply
    43,336.47x = 65,015.64 × 19,979.31
  4. Step 4: Simplify right side
    43,336.47x = 1,298,967,626.41
  5. Step 5: Solve for x
    x = 1,298,967,626.41/43,336.47
  6. Step 6: Final answer
    x = 29,974.01

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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.