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Finding the Fourth Proportional to 28,902.90, 43,354.35 and 9,183.45

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Solution

The fourth proportional to 28,902.90, 43,354.35 and 9,183.45 is: 13,775.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,902.90 : 43,354.35 = 9,183.45 : x
  2. Step 2: Convert to fraction form
    28,902.90/43,354.35 = 9,183.45/x
  3. Step 3: Cross multiply
    28,902.90x = 43,354.35 × 9,183.45
  4. Step 4: Simplify right side
    28,902.90x = 398,142,505.51
  5. Step 5: Solve for x
    x = 398,142,505.51/28,902.90
  6. Step 6: Final answer
    x = 13,775.18

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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.