Home / 39,619.06-54,674.72-21,713.66

Finding the Fourth Proportional to 39,619.06, 54,674.72 and 21,713.66

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Solution

The fourth proportional to 39,619.06, 54,674.72 and 21,713.66 is: 29,965.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,619.06 : 54,674.72 = 21,713.66 : x
  2. Step 2: Convert to fraction form
    39,619.06/54,674.72 = 21,713.66/x
  3. Step 3: Cross multiply
    39,619.06x = 54,674.72 × 21,713.66
  4. Step 4: Simplify right side
    39,619.06x = 1,187,188,280.68
  5. Step 5: Solve for x
    x = 1,187,188,280.68/39,619.06
  6. Step 6: Final answer
    x = 29,965.08

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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.