Home / 28,760.00-39,682.68-16,821.01

Finding the Fourth Proportional to 28,760.00, 39,682.68 and 16,821.01

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Solution

The fourth proportional to 28,760.00, 39,682.68 and 16,821.01 is: 23,209.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.00 : 39,682.68 = 16,821.01 : x
  2. Step 2: Convert to fraction form
    28,760.00/39,682.68 = 16,821.01/x
  3. Step 3: Cross multiply
    28,760.00x = 39,682.68 × 16,821.01
  4. Step 4: Simplify right side
    28,760.00x = 667,502,657.90
  5. Step 5: Solve for x
    x = 667,502,657.90/28,760.00
  6. Step 6: Final answer
    x = 23,209.41

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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.