Home / 39,415.21-54,397.68-22,422.22

Finding the Fourth Proportional to 39,415.21, 54,397.68 and 22,422.22

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Solution

The fourth proportional to 39,415.21, 54,397.68 and 22,422.22 is: 30,945.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,415.21 : 54,397.68 = 22,422.22 : x
  2. Step 2: Convert to fraction form
    39,415.21/54,397.68 = 22,422.22/x
  3. Step 3: Cross multiply
    39,415.21x = 54,397.68 × 22,422.22
  4. Step 4: Simplify right side
    39,415.21x = 1,219,716,528.37
  5. Step 5: Solve for x
    x = 1,219,716,528.37/39,415.21
  6. Step 6: Final answer
    x = 30,945.33

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Double scale
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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.