Home / 19,842.39-27,382.14-10,890

Finding the Fourth Proportional to 19,842.39, 27,382.14 and 10,890

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Solution

The fourth proportional to 19,842.39, 27,382.14 and 10,890 is: 15,028.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842.39 : 27,382.14 = 10,890 : x
  2. Step 2: Convert to fraction form
    19,842.39/27,382.14 = 10,890/x
  3. Step 3: Cross multiply
    19,842.39x = 27,382.14 × 10,890
  4. Step 4: Simplify right side
    19,842.39x = 298,191,504.60
  5. Step 5: Solve for x
    x = 298,191,504.60/19,842.39
  6. Step 6: Final answer
    x = 15,028.00

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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.