Home / 29,300.81-40,435.23-15,872.03

Finding the Fourth Proportional to 29,300.81, 40,435.23 and 15,872.03

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Solution

The fourth proportional to 29,300.81, 40,435.23 and 15,872.03 is: 21,903.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,300.81 : 40,435.23 = 15,872.03 : x
  2. Step 2: Convert to fraction form
    29,300.81/40,435.23 = 15,872.03/x
  3. Step 3: Cross multiply
    29,300.81x = 40,435.23 × 15,872.03
  4. Step 4: Simplify right side
    29,300.81x = 641,789,183.62
  5. Step 5: Solve for x
    x = 641,789,183.62/29,300.81
  6. Step 6: Final answer
    x = 21,903.46

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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.