Home / 13,930.18-20,895.27-3,400.18

Finding the Fourth Proportional to 13,930.18, 20,895.27 and 3,400.18

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Solution

The fourth proportional to 13,930.18, 20,895.27 and 3,400.18 is: 5,100.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.18 : 20,895.27 = 3,400.18 : x
  2. Step 2: Convert to fraction form
    13,930.18/20,895.27 = 3,400.18/x
  3. Step 3: Cross multiply
    13,930.18x = 20,895.27 × 3,400.18
  4. Step 4: Simplify right side
    13,930.18x = 71,047,679.15
  5. Step 5: Solve for x
    x = 71,047,679.15/13,930.18
  6. Step 6: Final answer
    x = 5,100.27

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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.