Home / 28,830.73-43,245.83-9,109.28

Finding the Fourth Proportional to 28,830.73, 43,245.83 and 9,109.28

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Solution

The fourth proportional to 28,830.73, 43,245.83 and 9,109.28 is: 13,663.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.73 : 43,245.83 = 9,109.28 : x
  2. Step 2: Convert to fraction form
    28,830.73/43,245.83 = 9,109.28/x
  3. Step 3: Cross multiply
    28,830.73x = 43,245.83 × 9,109.28
  4. Step 4: Simplify right side
    28,830.73x = 393,938,374.30
  5. Step 5: Solve for x
    x = 393,938,374.30/28,830.73
  6. Step 6: Final answer
    x = 13,663.84

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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.