Home / 28,059.32-38,728.49-16,129.58

Finding the Fourth Proportional to 28,059.32, 38,728.49 and 16,129.58

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Solution

The fourth proportional to 28,059.32, 38,728.49 and 16,129.58 is: 22,262.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,059.32 : 38,728.49 = 16,129.58 : x
  2. Step 2: Convert to fraction form
    28,059.32/38,728.49 = 16,129.58/x
  3. Step 3: Cross multiply
    28,059.32x = 38,728.49 × 16,129.58
  4. Step 4: Simplify right side
    28,059.32x = 624,674,003.44
  5. Step 5: Solve for x
    x = 624,674,003.44/28,059.32
  6. Step 6: Final answer
    x = 22,262.62

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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.