Home / 29,379.84-40,554.96-21,462.72

Finding the Fourth Proportional to 29,379.84, 40,554.96 and 21,462.72

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Solution

The fourth proportional to 29,379.84, 40,554.96 and 21,462.72 is: 29,626.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,379.84 : 40,554.96 = 21,462.72 : x
  2. Step 2: Convert to fraction form
    29,379.84/40,554.96 = 21,462.72/x
  3. Step 3: Cross multiply
    29,379.84x = 40,554.96 × 21,462.72
  4. Step 4: Simplify right side
    29,379.84x = 870,419,751.09
  5. Step 5: Solve for x
    x = 870,419,751.09/29,379.84
  6. Step 6: Final answer
    x = 29,626.43

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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.