Home / 39,639.30-54,661.40-27,698.28

Finding the Fourth Proportional to 39,639.30, 54,661.40 and 27,698.28

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Solution

The fourth proportional to 39,639.30, 54,661.40 and 27,698.28 is: 38,195.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,639.30 : 54,661.40 = 27,698.28 : x
  2. Step 2: Convert to fraction form
    39,639.30/54,661.40 = 27,698.28/x
  3. Step 3: Cross multiply
    39,639.30x = 54,661.40 × 27,698.28
  4. Step 4: Simplify right side
    39,639.30x = 1,514,026,762.39
  5. Step 5: Solve for x
    x = 1,514,026,762.39/39,639.30
  6. Step 6: Final answer
    x = 38,195.09

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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.