Home / 35,723.72-49,302.79-20,620.43

Finding the Fourth Proportional to 35,723.72, 49,302.79 and 20,620.43

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Solution

The fourth proportional to 35,723.72, 49,302.79 and 20,620.43 is: 28,458.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,723.72 : 49,302.79 = 20,620.43 : x
  2. Step 2: Convert to fraction form
    35,723.72/49,302.79 = 20,620.43/x
  3. Step 3: Cross multiply
    35,723.72x = 49,302.79 × 20,620.43
  4. Step 4: Simplify right side
    35,723.72x = 1,016,644,784.48
  5. Step 5: Solve for x
    x = 1,016,644,784.48/35,723.72
  6. Step 6: Final answer
    x = 28,458.54

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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.