Home / 19,179.84-28,771.74-5,328.84

Finding the Fourth Proportional to 19,179.84, 28,771.74 and 5,328.84

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Solution

The fourth proportional to 19,179.84, 28,771.74 and 5,328.84 is: 7,993.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179.84 : 28,771.74 = 5,328.84 : x
  2. Step 2: Convert to fraction form
    19,179.84/28,771.74 = 5,328.84/x
  3. Step 3: Cross multiply
    19,179.84x = 28,771.74 × 5,328.84
  4. Step 4: Simplify right side
    19,179.84x = 153,319,998.98
  5. Step 5: Solve for x
    x = 153,319,998.98/19,179.84
  6. Step 6: Final answer
    x = 7,993.81

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1.5x scale

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.