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Finding the Fourth Proportional to 28,817.40, 43,227.06 and 8,039.16

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Solution

The fourth proportional to 28,817.40, 43,227.06 and 8,039.16 is: 12,059.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,817.40 : 43,227.06 = 8,039.16 : x
  2. Step 2: Convert to fraction form
    28,817.40/43,227.06 = 8,039.16/x
  3. Step 3: Cross multiply
    28,817.40x = 43,227.06 × 8,039.16
  4. Step 4: Simplify right side
    28,817.40x = 347,509,251.67
  5. Step 5: Solve for x
    x = 347,509,251.67/28,817.40
  6. Step 6: Final answer
    x = 12,059.01

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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.