Home / 28,718.10-39,621.82-17,383.96

Finding the Fourth Proportional to 28,718.10, 39,621.82 and 17,383.96

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Solution

The fourth proportional to 28,718.10, 39,621.82 and 17,383.96 is: 23,984.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.10 : 39,621.82 = 17,383.96 : x
  2. Step 2: Convert to fraction form
    28,718.10/39,621.82 = 17,383.96/x
  3. Step 3: Cross multiply
    28,718.10x = 39,621.82 × 17,383.96
  4. Step 4: Simplify right side
    28,718.10x = 688,784,134.01
  5. Step 5: Solve for x
    x = 688,784,134.01/28,718.10
  6. Step 6: Final answer
    x = 23,984.32

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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.