Home / 19,654.20-27,122.30-11,040.16

Finding the Fourth Proportional to 19,654.20, 27,122.30 and 11,040.16

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Solution

The fourth proportional to 19,654.20, 27,122.30 and 11,040.16 is: 15,235.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,654.20 : 27,122.30 = 11,040.16 : x
  2. Step 2: Convert to fraction form
    19,654.20/27,122.30 = 11,040.16/x
  3. Step 3: Cross multiply
    19,654.20x = 27,122.30 × 11,040.16
  4. Step 4: Simplify right side
    19,654.20x = 299,434,531.57
  5. Step 5: Solve for x
    x = 299,434,531.57/19,654.20
  6. Step 6: Final answer
    x = 15,235.14

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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.