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Finding the Fourth Proportional to 43,471.63, 65,169.73 and 19,437.68

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Solution

The fourth proportional to 43,471.63, 65,169.73 and 19,437.68 is: 29,139.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,471.63 : 65,169.73 = 19,437.68 : x
  2. Step 2: Convert to fraction form
    43,471.63/65,169.73 = 19,437.68/x
  3. Step 3: Cross multiply
    43,471.63x = 65,169.73 × 19,437.68
  4. Step 4: Simplify right side
    43,471.63x = 1,266,748,544.65
  5. Step 5: Solve for x
    x = 1,266,748,544.65/43,471.63
  6. Step 6: Final answer
    x = 29,139.66

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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.