Home / 28,840.80-43,261.20-17,817.60

Finding the Fourth Proportional to 28,840.80, 43,261.20 and 17,817.60

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Solution

The fourth proportional to 28,840.80, 43,261.20 and 17,817.60 is: 26,726.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,840.80 : 43,261.20 = 17,817.60 : x
  2. Step 2: Convert to fraction form
    28,840.80/43,261.20 = 17,817.60/x
  3. Step 3: Cross multiply
    28,840.80x = 43,261.20 × 17,817.60
  4. Step 4: Simplify right side
    28,840.80x = 770,810,757.12
  5. Step 5: Solve for x
    x = 770,810,757.12/28,840.80
  6. Step 6: Final answer
    x = 26,726.40

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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.