Home / 30,611.37-42,246.09-17,181.78

Finding the Fourth Proportional to 30,611.37, 42,246.09 and 17,181.78

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Solution

The fourth proportional to 30,611.37, 42,246.09 and 17,181.78 is: 23,712.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611.37 : 42,246.09 = 17,181.78 : x
  2. Step 2: Convert to fraction form
    30,611.37/42,246.09 = 17,181.78/x
  3. Step 3: Cross multiply
    30,611.37x = 42,246.09 × 17,181.78
  4. Step 4: Simplify right side
    30,611.37x = 725,863,024.24
  5. Step 5: Solve for x
    x = 725,863,024.24/30,611.37
  6. Step 6: Final answer
    x = 23,712.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.