Home / 28,816.90-39,770.74-16,072.16

Finding the Fourth Proportional to 28,816.90, 39,770.74 and 16,072.16

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Solution

The fourth proportional to 28,816.90, 39,770.74 and 16,072.16 is: 22,181.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,816.90 : 39,770.74 = 16,072.16 : x
  2. Step 2: Convert to fraction form
    28,816.90/39,770.74 = 16,072.16/x
  3. Step 3: Cross multiply
    28,816.90x = 39,770.74 × 16,072.16
  4. Step 4: Simplify right side
    28,816.90x = 639,201,696.60
  5. Step 5: Solve for x
    x = 639,201,696.60/28,816.90
  6. Step 6: Final answer
    x = 22,181.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.