Home / 30,410.11-45,620.84-11,689.39

Finding the Fourth Proportional to 30,410.11, 45,620.84 and 11,689.39

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Solution

The fourth proportional to 30,410.11, 45,620.84 and 11,689.39 is: 17,536.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,410.11 : 45,620.84 = 11,689.39 : x
  2. Step 2: Convert to fraction form
    30,410.11/45,620.84 = 11,689.39/x
  3. Step 3: Cross multiply
    30,410.11x = 45,620.84 × 11,689.39
  4. Step 4: Simplify right side
    30,410.11x = 533,279,790.89
  5. Step 5: Solve for x
    x = 533,279,790.89/30,410.11
  6. Step 6: Final answer
    x = 17,536.27

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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.