Home / 43,576.08-65,372.67-13,991.64

Finding the Fourth Proportional to 43,576.08, 65,372.67 and 13,991.64

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Solution

The fourth proportional to 43,576.08, 65,372.67 and 13,991.64 is: 20,990.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,576.08 : 65,372.67 = 13,991.64 : x
  2. Step 2: Convert to fraction form
    43,576.08/65,372.67 = 13,991.64/x
  3. Step 3: Cross multiply
    43,576.08x = 65,372.67 × 13,991.64
  4. Step 4: Simplify right side
    43,576.08x = 914,670,864.48
  5. Step 5: Solve for x
    x = 914,670,864.48/43,576.08
  6. Step 6: Final answer
    x = 20,990.21

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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.