Home / 19,069.41-28,611.98-8,390.28

Finding the Fourth Proportional to 19,069.41, 28,611.98 and 8,390.28

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Solution

The fourth proportional to 19,069.41, 28,611.98 and 8,390.28 is: 12,588.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,069.41 : 28,611.98 = 8,390.28 : x
  2. Step 2: Convert to fraction form
    19,069.41/28,611.98 = 8,390.28/x
  3. Step 3: Cross multiply
    19,069.41x = 28,611.98 × 8,390.28
  4. Step 4: Simplify right side
    19,069.41x = 240,062,481.60
  5. Step 5: Solve for x
    x = 240,062,481.60/19,069.41
  6. Step 6: Final answer
    x = 12,588.88

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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.