Home / 39,705.18-54,793.82-21,800.94

Finding the Fourth Proportional to 39,705.18, 54,793.82 and 21,800.94

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Solution

The fourth proportional to 39,705.18, 54,793.82 and 21,800.94 is: 30,085.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,705.18 : 54,793.82 = 21,800.94 : x
  2. Step 2: Convert to fraction form
    39,705.18/54,793.82 = 21,800.94/x
  3. Step 3: Cross multiply
    39,705.18x = 54,793.82 × 21,800.94
  4. Step 4: Simplify right side
    39,705.18x = 1,194,556,782.19
  5. Step 5: Solve for x
    x = 1,194,556,782.19/39,705.18
  6. Step 6: Final answer
    x = 30,085.67

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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.