Home / 27,708.06-38,237.31-15,772.29

Finding the Fourth Proportional to 27,708.06, 38,237.31 and 15,772.29

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Solution

The fourth proportional to 27,708.06, 38,237.31 and 15,772.29 is: 21,765.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,708.06 : 38,237.31 = 15,772.29 : x
  2. Step 2: Convert to fraction form
    27,708.06/38,237.31 = 15,772.29/x
  3. Step 3: Cross multiply
    27,708.06x = 38,237.31 × 15,772.29
  4. Step 4: Simplify right side
    27,708.06x = 603,089,942.14
  5. Step 5: Solve for x
    x = 603,089,942.14/27,708.06
  6. Step 6: Final answer
    x = 21,765.87

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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.