Home / 27,779.80-41,640.54-19,984.36

Finding the Fourth Proportional to 27,779.80, 41,640.54 and 19,984.36

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Solution

The fourth proportional to 27,779.80, 41,640.54 and 19,984.36 is: 29,955.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,779.80 : 41,640.54 = 19,984.36 : x
  2. Step 2: Convert to fraction form
    27,779.80/41,640.54 = 19,984.36/x
  3. Step 3: Cross multiply
    27,779.80x = 41,640.54 × 19,984.36
  4. Step 4: Simplify right side
    27,779.80x = 832,159,541.95
  5. Step 5: Solve for x
    x = 832,159,541.95/27,779.80
  6. Step 6: Final answer
    x = 29,955.56

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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.