Home / 20,791.56-28,634.04-19,457.46

Finding the Fourth Proportional to 20,791.56, 28,634.04 and 19,457.46

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Solution

The fourth proportional to 20,791.56, 28,634.04 and 19,457.46 is: 26,796.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,791.56 : 28,634.04 = 19,457.46 : x
  2. Step 2: Convert to fraction form
    20,791.56/28,634.04 = 19,457.46/x
  3. Step 3: Cross multiply
    20,791.56x = 28,634.04 × 19,457.46
  4. Step 4: Simplify right side
    20,791.56x = 557,145,687.94
  5. Step 5: Solve for x
    x = 557,145,687.94/20,791.56
  6. Step 6: Final answer
    x = 26,796.72

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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.