Home / 31,179.84-46,742.10-11,453.78

Finding the Fourth Proportional to 31,179.84, 46,742.10 and 11,453.78

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Solution

The fourth proportional to 31,179.84, 46,742.10 and 11,453.78 is: 17,170.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,179.84 : 46,742.10 = 11,453.78 : x
  2. Step 2: Convert to fraction form
    31,179.84/46,742.10 = 11,453.78/x
  3. Step 3: Cross multiply
    31,179.84x = 46,742.10 × 11,453.78
  4. Step 4: Simplify right side
    31,179.84x = 535,373,730.14
  5. Step 5: Solve for x
    x = 535,373,730.14/31,179.84
  6. Step 6: Final answer
    x = 17,170.51

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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.