Home / 39,206.98-54,105.42-21,302.02

Finding the Fourth Proportional to 39,206.98, 54,105.42 and 21,302.02

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Solution

The fourth proportional to 39,206.98, 54,105.42 and 21,302.02 is: 29,396.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,206.98 : 54,105.42 = 21,302.02 : x
  2. Step 2: Convert to fraction form
    39,206.98/54,105.42 = 21,302.02/x
  3. Step 3: Cross multiply
    39,206.98x = 54,105.42 × 21,302.02
  4. Step 4: Simplify right side
    39,206.98x = 1,152,554,738.95
  5. Step 5: Solve for x
    x = 1,152,554,738.95/39,206.98
  6. Step 6: Final answer
    x = 29,396.67

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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.