Home / 39,160.36-54,016.85-28,940.92

Finding the Fourth Proportional to 39,160.36, 54,016.85 and 28,940.92

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Solution

The fourth proportional to 39,160.36, 54,016.85 and 28,940.92 is: 39,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,160.36 : 54,016.85 = 28,940.92 : x
  2. Step 2: Convert to fraction form
    39,160.36/54,016.85 = 28,940.92/x
  3. Step 3: Cross multiply
    39,160.36x = 54,016.85 × 28,940.92
  4. Step 4: Simplify right side
    39,160.36x = 1,563,297,342.34
  5. Step 5: Solve for x
    x = 1,563,297,342.34/39,160.36
  6. Step 6: Final answer
    x = 39,920.40

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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.