Home / 28,647.65-42,961.18-9,922.64

Finding the Fourth Proportional to 28,647.65, 42,961.18 and 9,922.64

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Solution

The fourth proportional to 28,647.65, 42,961.18 and 9,922.64 is: 14,880.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.65 : 42,961.18 = 9,922.64 : x
  2. Step 2: Convert to fraction form
    28,647.65/42,961.18 = 9,922.64/x
  3. Step 3: Cross multiply
    28,647.65x = 42,961.18 × 9,922.64
  4. Step 4: Simplify right side
    28,647.65x = 426,288,323.12
  5. Step 5: Solve for x
    x = 426,288,323.12/28,647.65
  6. Step 6: Final answer
    x = 14,880.39

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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.