Home / 28,728.90-43,128.45-16,257.60

Finding the Fourth Proportional to 28,728.90, 43,128.45 and 16,257.60

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Solution

The fourth proportional to 28,728.90, 43,128.45 and 16,257.60 is: 24,406.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728.90 : 43,128.45 = 16,257.60 : x
  2. Step 2: Convert to fraction form
    28,728.90/43,128.45 = 16,257.60/x
  3. Step 3: Cross multiply
    28,728.90x = 43,128.45 × 16,257.60
  4. Step 4: Simplify right side
    28,728.90x = 701,165,088.72
  5. Step 5: Solve for x
    x = 701,165,088.72/28,728.90
  6. Step 6: Final answer
    x = 24,406.26

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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.