Home / 19,520.22-29,268.45-7,659.78

Finding the Fourth Proportional to 19,520.22, 29,268.45 and 7,659.78

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Solution

The fourth proportional to 19,520.22, 29,268.45 and 7,659.78 is: 11,485.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.22 : 29,268.45 = 7,659.78 : x
  2. Step 2: Convert to fraction form
    19,520.22/29,268.45 = 7,659.78/x
  3. Step 3: Cross multiply
    19,520.22x = 29,268.45 × 7,659.78
  4. Step 4: Simplify right side
    19,520.22x = 224,189,887.94
  5. Step 5: Solve for x
    x = 224,189,887.94/19,520.22
  6. Step 6: Final answer
    x = 11,485.01

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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.