Home / 27,803.08-41,668.46-21,205

Finding the Fourth Proportional to 27,803.08, 41,668.46 and 21,205

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Solution

The fourth proportional to 27,803.08, 41,668.46 and 21,205 is: 31,779.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,803.08 : 41,668.46 = 21,205 : x
  2. Step 2: Convert to fraction form
    27,803.08/41,668.46 = 21,205/x
  3. Step 3: Cross multiply
    27,803.08x = 41,668.46 × 21,205
  4. Step 4: Simplify right side
    27,803.08x = 883,579,694.30
  5. Step 5: Solve for x
    x = 883,579,694.30/27,803.08
  6. Step 6: Final answer
    x = 31,779.92

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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.