Home / 19,831.74-27,396.27-15,847.62

Finding the Fourth Proportional to 19,831.74, 27,396.27 and 15,847.62

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Solution

The fourth proportional to 19,831.74, 27,396.27 and 15,847.62 is: 21,892.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.74 : 27,396.27 = 15,847.62 : x
  2. Step 2: Convert to fraction form
    19,831.74/27,396.27 = 15,847.62/x
  3. Step 3: Cross multiply
    19,831.74x = 27,396.27 × 15,847.62
  4. Step 4: Simplify right side
    19,831.74x = 434,165,676.38
  5. Step 5: Solve for x
    x = 434,165,676.38/19,831.74
  6. Step 6: Final answer
    x = 21,892.47

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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.