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Finding the Fourth Proportional to 43,393.93, 65,091.44 and 13,811.65

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Solution

The fourth proportional to 43,393.93, 65,091.44 and 13,811.65 is: 20,717.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,393.93 : 65,091.44 = 13,811.65 : x
  2. Step 2: Convert to fraction form
    43,393.93/65,091.44 = 13,811.65/x
  3. Step 3: Cross multiply
    43,393.93x = 65,091.44 × 13,811.65
  4. Step 4: Simplify right side
    43,393.93x = 899,020,118.22
  5. Step 5: Solve for x
    x = 899,020,118.22/43,393.93
  6. Step 6: Final answer
    x = 20,717.65

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1.5x scale

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.