Home / 30,364.76-45,515.96-11,639.72

Finding the Fourth Proportional to 30,364.76, 45,515.96 and 11,639.72

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Solution

The fourth proportional to 30,364.76, 45,515.96 and 11,639.72 is: 17,447.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,364.76 : 45,515.96 = 11,639.72 : x
  2. Step 2: Convert to fraction form
    30,364.76/45,515.96 = 11,639.72/x
  3. Step 3: Cross multiply
    30,364.76x = 45,515.96 × 11,639.72
  4. Step 4: Simplify right side
    30,364.76x = 529,793,029.93
  5. Step 5: Solve for x
    x = 529,793,029.93/30,364.76
  6. Step 6: Final answer
    x = 17,447.63

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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.