Home / 28,511.04-42,768.72-7,734

Finding the Fourth Proportional to 28,511.04, 42,768.72 and 7,734

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Solution

The fourth proportional to 28,511.04, 42,768.72 and 7,734 is: 11,601.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511.04 : 42,768.72 = 7,734 : x
  2. Step 2: Convert to fraction form
    28,511.04/42,768.72 = 7,734/x
  3. Step 3: Cross multiply
    28,511.04x = 42,768.72 × 7,734
  4. Step 4: Simplify right side
    28,511.04x = 330,773,280.48
  5. Step 5: Solve for x
    x = 330,773,280.48/28,511.04
  6. Step 6: Final answer
    x = 11,601.59

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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.