Home / 28,830.30-43,237.35-9,114.90

Finding the Fourth Proportional to 28,830.30, 43,237.35 and 9,114.90

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Solution

The fourth proportional to 28,830.30, 43,237.35 and 9,114.90 is: 13,669.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.30 : 43,237.35 = 9,114.90 : x
  2. Step 2: Convert to fraction form
    28,830.30/43,237.35 = 9,114.90/x
  3. Step 3: Cross multiply
    28,830.30x = 43,237.35 × 9,114.90
  4. Step 4: Simplify right side
    28,830.30x = 394,104,121.52
  5. Step 5: Solve for x
    x = 394,104,121.52/28,830.30
  6. Step 6: Final answer
    x = 13,669.79

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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.