Home / 28,903.11-43,356.70-12,261.26

Finding the Fourth Proportional to 28,903.11, 43,356.70 and 12,261.26

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Solution

The fourth proportional to 28,903.11, 43,356.70 and 12,261.26 is: 18,392.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.11 : 43,356.70 = 12,261.26 : x
  2. Step 2: Convert to fraction form
    28,903.11/43,356.70 = 12,261.26/x
  3. Step 3: Cross multiply
    28,903.11x = 43,356.70 × 12,261.26
  4. Step 4: Simplify right side
    28,903.11x = 531,607,771.44
  5. Step 5: Solve for x
    x = 531,607,771.44/28,903.11
  6. Step 6: Final answer
    x = 18,392.75

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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.