Home / 19,725.80-27,211.38-13,352.60

Finding the Fourth Proportional to 19,725.80, 27,211.38 and 13,352.60

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Solution

The fourth proportional to 19,725.80, 27,211.38 and 13,352.60 is: 18,419.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,725.80 : 27,211.38 = 13,352.60 : x
  2. Step 2: Convert to fraction form
    19,725.80/27,211.38 = 13,352.60/x
  3. Step 3: Cross multiply
    19,725.80x = 27,211.38 × 13,352.60
  4. Step 4: Simplify right side
    19,725.80x = 363,342,672.59
  5. Step 5: Solve for x
    x = 363,342,672.59/19,725.80
  6. Step 6: Final answer
    x = 18,419.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.