Home / 22,274.08-30,741.60-12,840.64

Finding the Fourth Proportional to 22,274.08, 30,741.60 and 12,840.64

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Solution

The fourth proportional to 22,274.08, 30,741.60 and 12,840.64 is: 17,722.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,274.08 : 30,741.60 = 12,840.64 : x
  2. Step 2: Convert to fraction form
    22,274.08/30,741.60 = 12,840.64/x
  3. Step 3: Cross multiply
    22,274.08x = 30,741.60 × 12,840.64
  4. Step 4: Simplify right side
    22,274.08x = 394,741,818.62
  5. Step 5: Solve for x
    x = 394,741,818.62/22,274.08
  6. Step 6: Final answer
    x = 17,722.03

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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.