Home / 28,025.94-38,678.52-15,450.68

Finding the Fourth Proportional to 28,025.94, 38,678.52 and 15,450.68

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Solution

The fourth proportional to 28,025.94, 38,678.52 and 15,450.68 is: 21,323.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.94 : 38,678.52 = 15,450.68 : x
  2. Step 2: Convert to fraction form
    28,025.94/38,678.52 = 15,450.68/x
  3. Step 3: Cross multiply
    28,025.94x = 38,678.52 × 15,450.68
  4. Step 4: Simplify right side
    28,025.94x = 597,609,435.39
  5. Step 5: Solve for x
    x = 597,609,435.39/28,025.94
  6. Step 6: Final answer
    x = 21,323.44

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Double scale
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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.