Home / 20,618.73-30,928.17-5,036.36

Finding the Fourth Proportional to 20,618.73, 30,928.17 and 5,036.36

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Solution

The fourth proportional to 20,618.73, 30,928.17 and 5,036.36 is: 7,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,618.73 : 30,928.17 = 5,036.36 : x
  2. Step 2: Convert to fraction form
    20,618.73/30,928.17 = 5,036.36/x
  3. Step 3: Cross multiply
    20,618.73x = 30,928.17 × 5,036.36
  4. Step 4: Simplify right side
    20,618.73x = 155,765,243.62
  5. Step 5: Solve for x
    x = 155,765,243.62/20,618.73
  6. Step 6: Final answer
    x = 7,554.55

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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.