Home / 39,188.22-54,077.43-22,421.34

Finding the Fourth Proportional to 39,188.22, 54,077.43 and 22,421.34

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Solution

The fourth proportional to 39,188.22, 54,077.43 and 22,421.34 is: 30,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,188.22 : 54,077.43 = 22,421.34 : x
  2. Step 2: Convert to fraction form
    39,188.22/54,077.43 = 22,421.34/x
  3. Step 3: Cross multiply
    39,188.22x = 54,077.43 × 22,421.34
  4. Step 4: Simplify right side
    39,188.22x = 1,212,488,444.36
  5. Step 5: Solve for x
    x = 1,212,488,444.36/39,188.22
  6. Step 6: Final answer
    x = 30,940.13

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Half scale
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Double scale
Find fourth proportional to 39,189.22, 54,078.81 and 22,422.34
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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.