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Finding the Fourth Proportional to 28,936.04, 43,404.06 and 9,220.64

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Solution

The fourth proportional to 28,936.04, 43,404.06 and 9,220.64 is: 13,830.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936.04 : 43,404.06 = 9,220.64 : x
  2. Step 2: Convert to fraction form
    28,936.04/43,404.06 = 9,220.64/x
  3. Step 3: Cross multiply
    28,936.04x = 43,404.06 × 9,220.64
  4. Step 4: Simplify right side
    28,936.04x = 400,213,211.80
  5. Step 5: Solve for x
    x = 400,213,211.80/28,936.04
  6. Step 6: Final answer
    x = 13,830.96

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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.