Home / 36,285.75-54,428.64-12,912.27

Finding the Fourth Proportional to 36,285.75, 54,428.64 and 12,912.27

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Solution

The fourth proportional to 36,285.75, 54,428.64 and 12,912.27 is: 19,368.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,285.75 : 54,428.64 = 12,912.27 : x
  2. Step 2: Convert to fraction form
    36,285.75/54,428.64 = 12,912.27/x
  3. Step 3: Cross multiply
    36,285.75x = 54,428.64 × 12,912.27
  4. Step 4: Simplify right side
    36,285.75x = 702,797,295.41
  5. Step 5: Solve for x
    x = 702,797,295.41/36,285.75
  6. Step 6: Final answer
    x = 19,368.41

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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.