Home / 39,022.19-53,850.62-21,117.20

Finding the Fourth Proportional to 39,022.19, 53,850.62 and 21,117.20

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Solution

The fourth proportional to 39,022.19, 53,850.62 and 21,117.20 is: 29,141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,022.19 : 53,850.62 = 21,117.20 : x
  2. Step 2: Convert to fraction form
    39,022.19/53,850.62 = 21,117.20/x
  3. Step 3: Cross multiply
    39,022.19x = 53,850.62 × 21,117.20
  4. Step 4: Simplify right side
    39,022.19x = 1,137,173,977.42
  5. Step 5: Solve for x
    x = 1,137,173,977.42/39,022.19
  6. Step 6: Final answer
    x = 29,141.73

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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.