Home / 19,831.88-27,368.50-11,217.35

Finding the Fourth Proportional to 19,831.88, 27,368.50 and 11,217.35

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Solution

The fourth proportional to 19,831.88, 27,368.50 and 11,217.35 is: 15,480.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.88 : 27,368.50 = 11,217.35 : x
  2. Step 2: Convert to fraction form
    19,831.88/27,368.50 = 11,217.35/x
  3. Step 3: Cross multiply
    19,831.88x = 27,368.50 × 11,217.35
  4. Step 4: Simplify right side
    19,831.88x = 307,002,083.85
  5. Step 5: Solve for x
    x = 307,002,083.85/19,831.88
  6. Step 6: Final answer
    x = 15,480.23

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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.