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Finding the Fourth Proportional to 28,409.04, 42,600.24 and 8,683.44

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Solution

The fourth proportional to 28,409.04, 42,600.24 and 8,683.44 is: 13,021.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409.04 : 42,600.24 = 8,683.44 : x
  2. Step 2: Convert to fraction form
    28,409.04/42,600.24 = 8,683.44/x
  3. Step 3: Cross multiply
    28,409.04x = 42,600.24 × 8,683.44
  4. Step 4: Simplify right side
    28,409.04x = 369,916,628.03
  5. Step 5: Solve for x
    x = 369,916,628.03/28,409.04
  6. Step 6: Final answer
    x = 13,021.09

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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.