Home / 19,310.52-26,661.42-13,020.60

Finding the Fourth Proportional to 19,310.52, 26,661.42 and 13,020.60

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Solution

The fourth proportional to 19,310.52, 26,661.42 and 13,020.60 is: 17,977.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310.52 : 26,661.42 = 13,020.60 : x
  2. Step 2: Convert to fraction form
    19,310.52/26,661.42 = 13,020.60/x
  3. Step 3: Cross multiply
    19,310.52x = 26,661.42 × 13,020.60
  4. Step 4: Simplify right side
    19,310.52x = 347,147,685.25
  5. Step 5: Solve for x
    x = 347,147,685.25/19,310.52
  6. Step 6: Final answer
    x = 17,977.13

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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.