Home / 28,804.13-43,223.20-12,163.08

Finding the Fourth Proportional to 28,804.13, 43,223.20 and 12,163.08

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Solution

The fourth proportional to 28,804.13, 43,223.20 and 12,163.08 is: 18,251.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,804.13 : 43,223.20 = 12,163.08 : x
  2. Step 2: Convert to fraction form
    28,804.13/43,223.20 = 12,163.08/x
  3. Step 3: Cross multiply
    28,804.13x = 43,223.20 × 12,163.08
  4. Step 4: Simplify right side
    28,804.13x = 525,727,239.46
  5. Step 5: Solve for x
    x = 525,727,239.46/28,804.13
  6. Step 6: Final answer
    x = 18,251.80

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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.