Home / 28,512.04-42,770.22-7,735

Finding the Fourth Proportional to 28,512.04, 42,770.22 and 7,735

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Solution

The fourth proportional to 28,512.04, 42,770.22 and 7,735 is: 11,603.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512.04 : 42,770.22 = 7,735 : x
  2. Step 2: Convert to fraction form
    28,512.04/42,770.22 = 7,735/x
  3. Step 3: Cross multiply
    28,512.04x = 42,770.22 × 7,735
  4. Step 4: Simplify right side
    28,512.04x = 330,827,651.70
  5. Step 5: Solve for x
    x = 330,827,651.70/28,512.04
  6. Step 6: Final answer
    x = 11,603.09

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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.