Home / 13,626.40-20,347.72-13,544.48

Finding the Fourth Proportional to 13,626.40, 20,347.72 and 13,544.48

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Solution

The fourth proportional to 13,626.40, 20,347.72 and 13,544.48 is: 20,225.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.40 : 20,347.72 = 13,544.48 : x
  2. Step 2: Convert to fraction form
    13,626.40/20,347.72 = 13,544.48/x
  3. Step 3: Cross multiply
    13,626.40x = 20,347.72 × 13,544.48
  4. Step 4: Simplify right side
    13,626.40x = 275,599,286.59
  5. Step 5: Solve for x
    x = 275,599,286.59/13,626.40
  6. Step 6: Final answer
    x = 20,225.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.