Home / 19,321.87-28,977.45-6,840.25

Finding the Fourth Proportional to 19,321.87, 28,977.45 and 6,840.25

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Solution

The fourth proportional to 19,321.87, 28,977.45 and 6,840.25 is: 10,258.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.87 : 28,977.45 = 6,840.25 : x
  2. Step 2: Convert to fraction form
    19,321.87/28,977.45 = 6,840.25/x
  3. Step 3: Cross multiply
    19,321.87x = 28,977.45 × 6,840.25
  4. Step 4: Simplify right side
    19,321.87x = 198,213,002.36
  5. Step 5: Solve for x
    x = 198,213,002.36/19,321.87
  6. Step 6: Final answer
    x = 10,258.48

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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.