Home / 17,942.30-26,918.87-12,955.94

Finding the Fourth Proportional to 17,942.30, 26,918.87 and 12,955.94

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Solution

The fourth proportional to 17,942.30, 26,918.87 and 12,955.94 is: 19,437.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,942.30 : 26,918.87 = 12,955.94 : x
  2. Step 2: Convert to fraction form
    17,942.30/26,918.87 = 12,955.94/x
  3. Step 3: Cross multiply
    17,942.30x = 26,918.87 × 12,955.94
  4. Step 4: Simplify right side
    17,942.30x = 348,759,065.21
  5. Step 5: Solve for x
    x = 348,759,065.21/17,942.30
  6. Step 6: Final answer
    x = 19,437.82

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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.