Home / 21,629.58-29,847.60-12,197.58

Finding the Fourth Proportional to 21,629.58, 29,847.60 and 12,197.58

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Solution

The fourth proportional to 21,629.58, 29,847.60 and 12,197.58 is: 16,831.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.58 : 29,847.60 = 12,197.58 : x
  2. Step 2: Convert to fraction form
    21,629.58/29,847.60 = 12,197.58/x
  3. Step 3: Cross multiply
    21,629.58x = 29,847.60 × 12,197.58
  4. Step 4: Simplify right side
    21,629.58x = 364,068,488.81
  5. Step 5: Solve for x
    x = 364,068,488.81/21,629.58
  6. Step 6: Final answer
    x = 16,831.97

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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.