Home / 29,128.80-43,662.90-19,769.58

Finding the Fourth Proportional to 29,128.80, 43,662.90 and 19,769.58

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Solution

The fourth proportional to 29,128.80, 43,662.90 and 19,769.58 is: 29,633.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,128.80 : 43,662.90 = 19,769.58 : x
  2. Step 2: Convert to fraction form
    29,128.80/43,662.90 = 19,769.58/x
  3. Step 3: Cross multiply
    29,128.80x = 43,662.90 × 19,769.58
  4. Step 4: Simplify right side
    29,128.80x = 863,197,034.71
  5. Step 5: Solve for x
    x = 863,197,034.71/29,128.80
  6. Step 6: Final answer
    x = 29,633.80

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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.