Home / 20,266.32-30,393.72-7,785.48

Finding the Fourth Proportional to 20,266.32, 30,393.72 and 7,785.48

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Solution

The fourth proportional to 20,266.32, 30,393.72 and 7,785.48 is: 11,676.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.32 : 30,393.72 = 7,785.48 : x
  2. Step 2: Convert to fraction form
    20,266.32/30,393.72 = 7,785.48/x
  3. Step 3: Cross multiply
    20,266.32x = 30,393.72 × 7,785.48
  4. Step 4: Simplify right side
    20,266.32x = 236,629,699.19
  5. Step 5: Solve for x
    x = 236,629,699.19/20,266.32
  6. Step 6: Final answer
    x = 11,676.01

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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.