Home / 22,197.30-30,603.69-15,831.15

Finding the Fourth Proportional to 22,197.30, 30,603.69 and 15,831.15

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Solution

The fourth proportional to 22,197.30, 30,603.69 and 15,831.15 is: 21,826.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,197.30 : 30,603.69 = 15,831.15 : x
  2. Step 2: Convert to fraction form
    22,197.30/30,603.69 = 15,831.15/x
  3. Step 3: Cross multiply
    22,197.30x = 30,603.69 × 15,831.15
  4. Step 4: Simplify right side
    22,197.30x = 484,491,606.94
  5. Step 5: Solve for x
    x = 484,491,606.94/22,197.30
  6. Step 6: Final answer
    x = 21,826.60

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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.