Home / 43,239.97-64,884.96-18,278.40

Finding the Fourth Proportional to 43,239.97, 64,884.96 and 18,278.40

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Solution

The fourth proportional to 43,239.97, 64,884.96 and 18,278.40 is: 27,428.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,239.97 : 64,884.96 = 18,278.40 : x
  2. Step 2: Convert to fraction form
    43,239.97/64,884.96 = 18,278.40/x
  3. Step 3: Cross multiply
    43,239.97x = 64,884.96 × 18,278.40
  4. Step 4: Simplify right side
    43,239.97x = 1,185,992,928.44
  5. Step 5: Solve for x
    x = 1,185,992,928.44/43,239.97
  6. Step 6: Final answer
    x = 27,428.16

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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.