Home / 27,769.64-38,321.51-15,831.86

Finding the Fourth Proportional to 27,769.64, 38,321.51 and 15,831.86

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Solution

The fourth proportional to 27,769.64, 38,321.51 and 15,831.86 is: 21,847.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,769.64 : 38,321.51 = 15,831.86 : x
  2. Step 2: Convert to fraction form
    27,769.64/38,321.51 = 15,831.86/x
  3. Step 3: Cross multiply
    27,769.64x = 38,321.51 × 15,831.86
  4. Step 4: Simplify right side
    27,769.64x = 606,700,510.54
  5. Step 5: Solve for x
    x = 606,700,510.54/27,769.64
  6. Step 6: Final answer
    x = 21,847.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.