Home / 30,464.91-45,659.32-21,029.76

Finding the Fourth Proportional to 30,464.91, 45,659.32 and 21,029.76

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Solution

The fourth proportional to 30,464.91, 45,659.32 and 21,029.76 is: 31,518.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,464.91 : 45,659.32 = 21,029.76 : x
  2. Step 2: Convert to fraction form
    30,464.91/45,659.32 = 21,029.76/x
  3. Step 3: Cross multiply
    30,464.91x = 45,659.32 × 21,029.76
  4. Step 4: Simplify right side
    30,464.91x = 960,204,207.92
  5. Step 5: Solve for x
    x = 960,204,207.92/30,464.91
  6. Step 6: Final answer
    x = 31,518.37

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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.