Home / 28,081.80-42,122.70-16,255.80

Finding the Fourth Proportional to 28,081.80, 42,122.70 and 16,255.80

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Solution

The fourth proportional to 28,081.80, 42,122.70 and 16,255.80 is: 24,383.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081.80 : 42,122.70 = 16,255.80 : x
  2. Step 2: Convert to fraction form
    28,081.80/42,122.70 = 16,255.80/x
  3. Step 3: Cross multiply
    28,081.80x = 42,122.70 × 16,255.80
  4. Step 4: Simplify right side
    28,081.80x = 684,738,186.66
  5. Step 5: Solve for x
    x = 684,738,186.66/28,081.80
  6. Step 6: Final answer
    x = 24,383.70

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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.