Home / 13,938.84-20,909.34-3,550.50

Finding the Fourth Proportional to 13,938.84, 20,909.34 and 3,550.50

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Solution

The fourth proportional to 13,938.84, 20,909.34 and 3,550.50 is: 5,326.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.84 : 20,909.34 = 3,550.50 : x
  2. Step 2: Convert to fraction form
    13,938.84/20,909.34 = 3,550.50/x
  3. Step 3: Cross multiply
    13,938.84x = 20,909.34 × 3,550.50
  4. Step 4: Simplify right side
    13,938.84x = 74,238,611.67
  5. Step 5: Solve for x
    x = 74,238,611.67/13,938.84
  6. Step 6: Final answer
    x = 5,326.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.