Home / 19,589.24-27,040.86-13,219.61

Finding the Fourth Proportional to 19,589.24, 27,040.86 and 13,219.61

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Solution

The fourth proportional to 19,589.24, 27,040.86 and 13,219.61 is: 18,248.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,589.24 : 27,040.86 = 13,219.61 : x
  2. Step 2: Convert to fraction form
    19,589.24/27,040.86 = 13,219.61/x
  3. Step 3: Cross multiply
    19,589.24x = 27,040.86 × 13,219.61
  4. Step 4: Simplify right side
    19,589.24x = 357,469,488.06
  5. Step 5: Solve for x
    x = 357,469,488.06/19,589.24
  6. Step 6: Final answer
    x = 18,248.25

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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.