Home / 35,675.76-49,221.24-20,768.88

Finding the Fourth Proportional to 35,675.76, 49,221.24 and 20,768.88

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Solution

The fourth proportional to 35,675.76, 49,221.24 and 20,768.88 is: 28,654.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,675.76 : 49,221.24 = 20,768.88 : x
  2. Step 2: Convert to fraction form
    35,675.76/49,221.24 = 20,768.88/x
  3. Step 3: Cross multiply
    35,675.76x = 49,221.24 × 20,768.88
  4. Step 4: Simplify right side
    35,675.76x = 1,022,270,027.01
  5. Step 5: Solve for x
    x = 1,022,270,027.01/35,675.76
  6. Step 6: Final answer
    x = 28,654.47

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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.