Home / 13,531.81-20,301.23-5,631.83

Finding the Fourth Proportional to 13,531.81, 20,301.23 and 5,631.83

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Solution

The fourth proportional to 13,531.81, 20,301.23 and 5,631.83 is: 8,449.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.81 : 20,301.23 = 5,631.83 : x
  2. Step 2: Convert to fraction form
    13,531.81/20,301.23 = 5,631.83/x
  3. Step 3: Cross multiply
    13,531.81x = 20,301.23 × 5,631.83
  4. Step 4: Simplify right side
    13,531.81x = 114,333,064.85
  5. Step 5: Solve for x
    x = 114,333,064.85/13,531.81
  6. Step 6: Final answer
    x = 8,449.21

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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.