Home / 19,947.77-27,520.97-11,443.98

Finding the Fourth Proportional to 19,947.77, 27,520.97 and 11,443.98

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Solution

The fourth proportional to 19,947.77, 27,520.97 and 11,443.98 is: 15,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.77 : 27,520.97 = 11,443.98 : x
  2. Step 2: Convert to fraction form
    19,947.77/27,520.97 = 11,443.98/x
  3. Step 3: Cross multiply
    19,947.77x = 27,520.97 × 11,443.98
  4. Step 4: Simplify right side
    19,947.77x = 314,949,476.24
  5. Step 5: Solve for x
    x = 314,949,476.24/19,947.77
  6. Step 6: Final answer
    x = 15,788.71

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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.