Home / 27,577.78-38,054.01-15,640.54

Finding the Fourth Proportional to 27,577.78, 38,054.01 and 15,640.54

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Solution

The fourth proportional to 27,577.78, 38,054.01 and 15,640.54 is: 21,582.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,577.78 : 38,054.01 = 15,640.54 : x
  2. Step 2: Convert to fraction form
    27,577.78/38,054.01 = 15,640.54/x
  3. Step 3: Cross multiply
    27,577.78x = 38,054.01 × 15,640.54
  4. Step 4: Simplify right side
    27,577.78x = 595,185,265.57
  5. Step 5: Solve for x
    x = 595,185,265.57/27,577.78
  6. Step 6: Final answer
    x = 21,582.06

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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.