Home / 28,918.43-43,384.01-12,292.68

Finding the Fourth Proportional to 28,918.43, 43,384.01 and 12,292.68

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Solution

The fourth proportional to 28,918.43, 43,384.01 and 12,292.68 is: 18,441.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918.43 : 43,384.01 = 12,292.68 : x
  2. Step 2: Convert to fraction form
    28,918.43/43,384.01 = 12,292.68/x
  3. Step 3: Cross multiply
    28,918.43x = 43,384.01 × 12,292.68
  4. Step 4: Simplify right side
    28,918.43x = 533,305,690.58
  5. Step 5: Solve for x
    x = 533,305,690.58/28,918.43
  6. Step 6: Final answer
    x = 18,441.73

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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.