Home / 27,739.36-38,287.02-15,805.63

Finding the Fourth Proportional to 27,739.36, 38,287.02 and 15,805.63

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Solution

The fourth proportional to 27,739.36, 38,287.02 and 15,805.63 is: 21,815.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,739.36 : 38,287.02 = 15,805.63 : x
  2. Step 2: Convert to fraction form
    27,739.36/38,287.02 = 15,805.63/x
  3. Step 3: Cross multiply
    27,739.36x = 38,287.02 × 15,805.63
  4. Step 4: Simplify right side
    27,739.36x = 605,150,471.92
  5. Step 5: Solve for x
    x = 605,150,471.92/27,739.36
  6. Step 6: Final answer
    x = 21,815.59

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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.