Home / 28,858.10-43,291.70-12,218.22

Finding the Fourth Proportional to 28,858.10, 43,291.70 and 12,218.22

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Solution

The fourth proportional to 28,858.10, 43,291.70 and 12,218.22 is: 18,329.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,858.10 : 43,291.70 = 12,218.22 : x
  2. Step 2: Convert to fraction form
    28,858.10/43,291.70 = 12,218.22/x
  3. Step 3: Cross multiply
    28,858.10x = 43,291.70 × 12,218.22
  4. Step 4: Simplify right side
    28,858.10x = 528,947,453.68
  5. Step 5: Solve for x
    x = 528,947,453.68/28,858.10
  6. Step 6: Final answer
    x = 18,329.26

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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.