Home / 13,531.33-20,299.52-4,771.81

Finding the Fourth Proportional to 13,531.33, 20,299.52 and 4,771.81

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Solution

The fourth proportional to 13,531.33, 20,299.52 and 4,771.81 is: 7,158.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.33 : 20,299.52 = 4,771.81 : x
  2. Step 2: Convert to fraction form
    13,531.33/20,299.52 = 4,771.81/x
  3. Step 3: Cross multiply
    13,531.33x = 20,299.52 × 4,771.81
  4. Step 4: Simplify right side
    13,531.33x = 96,865,428.67
  5. Step 5: Solve for x
    x = 96,865,428.67/13,531.33
  6. Step 6: Final answer
    x = 7,158.60

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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.