Home / 31,814.06-43,907.43-19,238.78

Finding the Fourth Proportional to 31,814.06, 43,907.43 and 19,238.78

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Solution

The fourth proportional to 31,814.06, 43,907.43 and 19,238.78 is: 26,551.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,814.06 : 43,907.43 = 19,238.78 : x
  2. Step 2: Convert to fraction form
    31,814.06/43,907.43 = 19,238.78/x
  3. Step 3: Cross multiply
    31,814.06x = 43,907.43 × 19,238.78
  4. Step 4: Simplify right side
    31,814.06x = 844,725,386.14
  5. Step 5: Solve for x
    x = 844,725,386.14/31,814.06
  6. Step 6: Final answer
    x = 26,551.95

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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.