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Finding the Fourth Proportional to 28,504.80, 42,808.40 and 27,583.20

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Solution

The fourth proportional to 28,504.80, 42,808.40 and 27,583.20 is: 41,424.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,504.80 : 42,808.40 = 27,583.20 : x
  2. Step 2: Convert to fraction form
    28,504.80/42,808.40 = 27,583.20/x
  3. Step 3: Cross multiply
    28,504.80x = 42,808.40 × 27,583.20
  4. Step 4: Simplify right side
    28,504.80x = 1,180,792,658.88
  5. Step 5: Solve for x
    x = 1,180,792,658.88/28,504.80
  6. Step 6: Final answer
    x = 41,424.34

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1.5x scale

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.