Home / 31,561.31-43,570.38-19,628.49

Finding the Fourth Proportional to 31,561.31, 43,570.38 and 19,628.49

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Solution

The fourth proportional to 31,561.31, 43,570.38 and 19,628.49 is: 27,097.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,561.31 : 43,570.38 = 19,628.49 : x
  2. Step 2: Convert to fraction form
    31,561.31/43,570.38 = 19,628.49/x
  3. Step 3: Cross multiply
    31,561.31x = 43,570.38 × 19,628.49
  4. Step 4: Simplify right side
    31,561.31x = 855,220,768.13
  5. Step 5: Solve for x
    x = 855,220,768.13/31,561.31
  6. Step 6: Final answer
    x = 27,097.13

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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.