Home / 30,481.34-45,720.78-11,758.18

Finding the Fourth Proportional to 30,481.34, 45,720.78 and 11,758.18

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Solution

The fourth proportional to 30,481.34, 45,720.78 and 11,758.18 is: 17,636.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,481.34 : 45,720.78 = 11,758.18 : x
  2. Step 2: Convert to fraction form
    30,481.34/45,720.78 = 11,758.18/x
  3. Step 3: Cross multiply
    30,481.34x = 45,720.78 × 11,758.18
  4. Step 4: Simplify right side
    30,481.34x = 537,593,160.98
  5. Step 5: Solve for x
    x = 537,593,160.98/30,481.34
  6. Step 6: Final answer
    x = 17,636.80

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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.