Home / 19,760.00-27,278.72-15,273.62

Finding the Fourth Proportional to 19,760.00, 27,278.72 and 15,273.62

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Solution

The fourth proportional to 19,760.00, 27,278.72 and 15,273.62 is: 21,085.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,760.00 : 27,278.72 = 15,273.62 : x
  2. Step 2: Convert to fraction form
    19,760.00/27,278.72 = 15,273.62/x
  3. Step 3: Cross multiply
    19,760.00x = 27,278.72 × 15,273.62
  4. Step 4: Simplify right side
    19,760.00x = 416,644,590.60
  5. Step 5: Solve for x
    x = 416,644,590.60/19,760.00
  6. Step 6: Final answer
    x = 21,085.26

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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.