Home / 19,761.09-27,257.84-13,790.58

Finding the Fourth Proportional to 19,761.09, 27,257.84 and 13,790.58

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Solution

The fourth proportional to 19,761.09, 27,257.84 and 13,790.58 is: 19,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.09 : 27,257.84 = 13,790.58 : x
  2. Step 2: Convert to fraction form
    19,761.09/27,257.84 = 13,790.58/x
  3. Step 3: Cross multiply
    19,761.09x = 27,257.84 × 13,790.58
  4. Step 4: Simplify right side
    19,761.09x = 375,901,354.19
  5. Step 5: Solve for x
    x = 375,901,354.19/19,761.09
  6. Step 6: Final answer
    x = 19,022.30

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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.