Home / 28,185.07-42,284.08-8,464.00

Finding the Fourth Proportional to 28,185.07, 42,284.08 and 8,464.00

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Solution

The fourth proportional to 28,185.07, 42,284.08 and 8,464.00 is: 12,697.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,185.07 : 42,284.08 = 8,464.00 : x
  2. Step 2: Convert to fraction form
    28,185.07/42,284.08 = 8,464.00/x
  3. Step 3: Cross multiply
    28,185.07x = 42,284.08 × 8,464.00
  4. Step 4: Simplify right side
    28,185.07x = 357,892,241.70
  5. Step 5: Solve for x
    x = 357,892,241.70/28,185.07
  6. Step 6: Final answer
    x = 12,697.94

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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.