Home / 13,938.56-20,907.91-3,550.31

Finding the Fourth Proportional to 13,938.56, 20,907.91 and 3,550.31

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Solution

The fourth proportional to 13,938.56, 20,907.91 and 3,550.31 is: 5,325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.56 : 20,907.91 = 3,550.31 : x
  2. Step 2: Convert to fraction form
    13,938.56/20,907.91 = 3,550.31/x
  3. Step 3: Cross multiply
    13,938.56x = 20,907.91 × 3,550.31
  4. Step 4: Simplify right side
    13,938.56x = 74,229,457.41
  5. Step 5: Solve for x
    x = 74,229,457.41/13,938.56
  6. Step 6: Final answer
    x = 5,325.48

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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.