Home / 20,316.81-30,476.58-7,836.94

Finding the Fourth Proportional to 20,316.81, 30,476.58 and 7,836.94

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Solution

The fourth proportional to 20,316.81, 30,476.58 and 7,836.94 is: 11,755.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.81 : 30,476.58 = 7,836.94 : x
  2. Step 2: Convert to fraction form
    20,316.81/30,476.58 = 7,836.94/x
  3. Step 3: Cross multiply
    20,316.81x = 30,476.58 × 7,836.94
  4. Step 4: Simplify right side
    20,316.81x = 238,843,067.37
  5. Step 5: Solve for x
    x = 238,843,067.37/20,316.81
  6. Step 6: Final answer
    x = 11,755.93

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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.