Home / 38,210.70-57,321.81-11,917.50

Finding the Fourth Proportional to 38,210.70, 57,321.81 and 11,917.50

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Solution

The fourth proportional to 38,210.70, 57,321.81 and 11,917.50 is: 17,878.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,210.70 : 57,321.81 = 11,917.50 : x
  2. Step 2: Convert to fraction form
    38,210.70/57,321.81 = 11,917.50/x
  3. Step 3: Cross multiply
    38,210.70x = 57,321.81 × 11,917.50
  4. Step 4: Simplify right side
    38,210.70x = 683,132,670.68
  5. Step 5: Solve for x
    x = 683,132,670.68/38,210.70
  6. Step 6: Final answer
    x = 17,878.05

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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.