Home / 38,986.03-53,800.68-21,080.99

Finding the Fourth Proportional to 38,986.03, 53,800.68 and 21,080.99

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Solution

The fourth proportional to 38,986.03, 53,800.68 and 21,080.99 is: 29,091.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,986.03 : 53,800.68 = 21,080.99 : x
  2. Step 2: Convert to fraction form
    38,986.03/53,800.68 = 21,080.99/x
  3. Step 3: Cross multiply
    38,986.03x = 53,800.68 × 21,080.99
  4. Step 4: Simplify right side
    38,986.03x = 1,134,171,222.66
  5. Step 5: Solve for x
    x = 1,134,171,222.66/38,986.03
  6. Step 6: Final answer
    x = 29,091.74

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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.