Home / 39,763.18-54,873.87-21,858.94

Finding the Fourth Proportional to 39,763.18, 54,873.87 and 21,858.94

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Solution

The fourth proportional to 39,763.18, 54,873.87 and 21,858.94 is: 30,165.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,763.18 : 54,873.87 = 21,858.94 : x
  2. Step 2: Convert to fraction form
    39,763.18/54,873.87 = 21,858.94/x
  3. Step 3: Cross multiply
    39,763.18x = 54,873.87 × 21,858.94
  4. Step 4: Simplify right side
    39,763.18x = 1,199,484,631.90
  5. Step 5: Solve for x
    x = 1,199,484,631.90/39,763.18
  6. Step 6: Final answer
    x = 30,165.71

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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.