Home / 28,680.45-43,023.33-11,151.60

Finding the Fourth Proportional to 28,680.45, 43,023.33 and 11,151.60

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Solution

The fourth proportional to 28,680.45, 43,023.33 and 11,151.60 is: 16,728.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680.45 : 43,023.33 = 11,151.60 : x
  2. Step 2: Convert to fraction form
    28,680.45/43,023.33 = 11,151.60/x
  3. Step 3: Cross multiply
    28,680.45x = 43,023.33 × 11,151.60
  4. Step 4: Simplify right side
    28,680.45x = 479,778,966.83
  5. Step 5: Solve for x
    x = 479,778,966.83/28,680.45
  6. Step 6: Final answer
    x = 16,728.43

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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.