Home / 28,639.00-42,944.45-11,768.95

Finding the Fourth Proportional to 28,639.00, 42,944.45 and 11,768.95

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Solution

The fourth proportional to 28,639.00, 42,944.45 and 11,768.95 is: 17,647.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,639.00 : 42,944.45 = 11,768.95 : x
  2. Step 2: Convert to fraction form
    28,639.00/42,944.45 = 11,768.95/x
  3. Step 3: Cross multiply
    28,639.00x = 42,944.45 × 11,768.95
  4. Step 4: Simplify right side
    28,639.00x = 505,411,025.98
  5. Step 5: Solve for x
    x = 505,411,025.98/28,639.00
  6. Step 6: Final answer
    x = 17,647.65

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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.