Home / 28,855.88-43,291.49-12,216.62

Finding the Fourth Proportional to 28,855.88, 43,291.49 and 12,216.62

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Solution

The fourth proportional to 28,855.88, 43,291.49 and 12,216.62 is: 18,328.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,855.88 : 43,291.49 = 12,216.62 : x
  2. Step 2: Convert to fraction form
    28,855.88/43,291.49 = 12,216.62/x
  3. Step 3: Cross multiply
    28,855.88x = 43,291.49 × 12,216.62
  4. Step 4: Simplify right side
    28,855.88x = 528,875,405.02
  5. Step 5: Solve for x
    x = 528,875,405.02/28,855.88
  6. Step 6: Final answer
    x = 18,328.17

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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.