Home / 19,990.14-27,585.42-11,486.25

Finding the Fourth Proportional to 19,990.14, 27,585.42 and 11,486.25

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Solution

The fourth proportional to 19,990.14, 27,585.42 and 11,486.25 is: 15,850.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.14 : 27,585.42 = 11,486.25 : x
  2. Step 2: Convert to fraction form
    19,990.14/27,585.42 = 11,486.25/x
  3. Step 3: Cross multiply
    19,990.14x = 27,585.42 × 11,486.25
  4. Step 4: Simplify right side
    19,990.14x = 316,853,030.48
  5. Step 5: Solve for x
    x = 316,853,030.48/19,990.14
  6. Step 6: Final answer
    x = 15,850.47

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1.5x scale

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.