Home / 36,831.60-55,247.40-21,279.60

Finding the Fourth Proportional to 36,831.60, 55,247.40 and 21,279.60

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Solution

The fourth proportional to 36,831.60, 55,247.40 and 21,279.60 is: 31,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,831.60 : 55,247.40 = 21,279.60 : x
  2. Step 2: Convert to fraction form
    36,831.60/55,247.40 = 21,279.60/x
  3. Step 3: Cross multiply
    36,831.60x = 55,247.40 × 21,279.60
  4. Step 4: Simplify right side
    36,831.60x = 1,175,642,573.04
  5. Step 5: Solve for x
    x = 1,175,642,573.04/36,831.60
  6. Step 6: Final answer
    x = 31,919.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.