Home / 22,264.60-30,718.84-12,831.36

Finding the Fourth Proportional to 22,264.60, 30,718.84 and 12,831.36

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Solution

The fourth proportional to 22,264.60, 30,718.84 and 12,831.36 is: 17,703.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,264.60 : 30,718.84 = 12,831.36 : x
  2. Step 2: Convert to fraction form
    22,264.60/30,718.84 = 12,831.36/x
  3. Step 3: Cross multiply
    22,264.60x = 30,718.84 × 12,831.36
  4. Step 4: Simplify right side
    22,264.60x = 394,164,494.82
  5. Step 5: Solve for x
    x = 394,164,494.82/22,264.60
  6. Step 6: Final answer
    x = 17,703.64

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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.