Home / 18,686.67-28,035.42-5,539.35

Finding the Fourth Proportional to 18,686.67, 28,035.42 and 5,539.35

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Solution

The fourth proportional to 18,686.67, 28,035.42 and 5,539.35 is: 8,310.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.67 : 28,035.42 = 5,539.35 : x
  2. Step 2: Convert to fraction form
    18,686.67/28,035.42 = 5,539.35/x
  3. Step 3: Cross multiply
    18,686.67x = 28,035.42 × 5,539.35
  4. Step 4: Simplify right side
    18,686.67x = 155,298,088.14
  5. Step 5: Solve for x
    x = 155,298,088.14/18,686.67
  6. Step 6: Final answer
    x = 8,310.64

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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.