Home / 28,884.48-39,865.92-18,266.88

Finding the Fourth Proportional to 28,884.48, 39,865.92 and 18,266.88

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Solution

The fourth proportional to 28,884.48, 39,865.92 and 18,266.88 is: 25,211.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,884.48 : 39,865.92 = 18,266.88 : x
  2. Step 2: Convert to fraction form
    28,884.48/39,865.92 = 18,266.88/x
  3. Step 3: Cross multiply
    28,884.48x = 39,865.92 × 18,266.88
  4. Step 4: Simplify right side
    28,884.48x = 728,225,976.73
  5. Step 5: Solve for x
    x = 728,225,976.73/28,884.48
  6. Step 6: Final answer
    x = 25,211.67

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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.