Home / 19,828.64-27,357.98-12,759.17

Finding the Fourth Proportional to 19,828.64, 27,357.98 and 12,759.17

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Solution

The fourth proportional to 19,828.64, 27,357.98 and 12,759.17 is: 17,604.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,828.64 : 27,357.98 = 12,759.17 : x
  2. Step 2: Convert to fraction form
    19,828.64/27,357.98 = 12,759.17/x
  3. Step 3: Cross multiply
    19,828.64x = 27,357.98 × 12,759.17
  4. Step 4: Simplify right side
    19,828.64x = 349,064,917.09
  5. Step 5: Solve for x
    x = 349,064,917.09/19,828.64
  6. Step 6: Final answer
    x = 17,604.08

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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.