Home / 18,904.67-28,358.58-5,757.16

Finding the Fourth Proportional to 18,904.67, 28,358.58 and 5,757.16

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Solution

The fourth proportional to 18,904.67, 28,358.58 and 5,757.16 is: 8,636.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.67 : 28,358.58 = 5,757.16 : x
  2. Step 2: Convert to fraction form
    18,904.67/28,358.58 = 5,757.16/x
  3. Step 3: Cross multiply
    18,904.67x = 28,358.58 × 5,757.16
  4. Step 4: Simplify right side
    18,904.67x = 163,264,740.64
  5. Step 5: Solve for x
    x = 163,264,740.64/18,904.67
  6. Step 6: Final answer
    x = 8,636.21

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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.