Home / 28,850.24-43,279.80-12,210.36

Finding the Fourth Proportional to 28,850.24, 43,279.80 and 12,210.36

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Solution

The fourth proportional to 28,850.24, 43,279.80 and 12,210.36 is: 18,317.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,850.24 : 43,279.80 = 12,210.36 : x
  2. Step 2: Convert to fraction form
    28,850.24/43,279.80 = 12,210.36/x
  3. Step 3: Cross multiply
    28,850.24x = 43,279.80 × 12,210.36
  4. Step 4: Simplify right side
    28,850.24x = 528,461,938.73
  5. Step 5: Solve for x
    x = 528,461,938.73/28,850.24
  6. Step 6: Final answer
    x = 18,317.42

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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.