Home / 15,828.20-23,720.42-13,475.96

Finding the Fourth Proportional to 15,828.20, 23,720.42 and 13,475.96

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Solution

The fourth proportional to 15,828.20, 23,720.42 and 13,475.96 is: 20,195.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,828.20 : 23,720.42 = 13,475.96 : x
  2. Step 2: Convert to fraction form
    15,828.20/23,720.42 = 13,475.96/x
  3. Step 3: Cross multiply
    15,828.20x = 23,720.42 × 13,475.96
  4. Step 4: Simplify right side
    15,828.20x = 319,655,431.10
  5. Step 5: Solve for x
    x = 319,655,431.10/15,828.20
  6. Step 6: Final answer
    x = 20,195.31

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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.