Home / 28,708.96-43,083.12-11,178.88

Finding the Fourth Proportional to 28,708.96, 43,083.12 and 11,178.88

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Solution

The fourth proportional to 28,708.96, 43,083.12 and 11,178.88 is: 16,775.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,708.96 : 43,083.12 = 11,178.88 : x
  2. Step 2: Convert to fraction form
    28,708.96/43,083.12 = 11,178.88/x
  3. Step 3: Cross multiply
    28,708.96x = 43,083.12 × 11,178.88
  4. Step 4: Simplify right side
    28,708.96x = 481,621,028.51
  5. Step 5: Solve for x
    x = 481,621,028.51/28,708.96
  6. Step 6: Final answer
    x = 16,775.98

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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.