Home / 13,342.55-20,014.94-3,981.95

Finding the Fourth Proportional to 13,342.55, 20,014.94 and 3,981.95

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Solution

The fourth proportional to 13,342.55, 20,014.94 and 3,981.95 is: 5,973.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.55 : 20,014.94 = 3,981.95 : x
  2. Step 2: Convert to fraction form
    13,342.55/20,014.94 = 3,981.95/x
  3. Step 3: Cross multiply
    13,342.55x = 20,014.94 × 3,981.95
  4. Step 4: Simplify right side
    13,342.55x = 79,698,370.35
  5. Step 5: Solve for x
    x = 79,698,370.35/13,342.55
  6. Step 6: Final answer
    x = 5,973.25

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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.