Home / 19,027.80-28,517.40-16,840.80

Finding the Fourth Proportional to 19,027.80, 28,517.40 and 16,840.80

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Solution

The fourth proportional to 19,027.80, 28,517.40 and 16,840.80 is: 25,239.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,027.80 : 28,517.40 = 16,840.80 : x
  2. Step 2: Convert to fraction form
    19,027.80/28,517.40 = 16,840.80/x
  3. Step 3: Cross multiply
    19,027.80x = 28,517.40 × 16,840.80
  4. Step 4: Simplify right side
    19,027.80x = 480,255,829.92
  5. Step 5: Solve for x
    x = 480,255,829.92/19,027.80
  6. Step 6: Final answer
    x = 25,239.69

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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.