Home / 28,858.10-43,291.20-9,134.60

Finding the Fourth Proportional to 28,858.10, 43,291.20 and 9,134.60

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Solution

The fourth proportional to 28,858.10, 43,291.20 and 9,134.60 is: 13,703.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,858.10 : 43,291.20 = 9,134.60 : x
  2. Step 2: Convert to fraction form
    28,858.10/43,291.20 = 9,134.60/x
  3. Step 3: Cross multiply
    28,858.10x = 43,291.20 × 9,134.60
  4. Step 4: Simplify right side
    28,858.10x = 395,447,795.52
  5. Step 5: Solve for x
    x = 395,447,795.52/28,858.10
  6. Step 6: Final answer
    x = 13,703.18

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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.