Home / 31,166.90-43,004.62-18,422.16

Finding the Fourth Proportional to 31,166.90, 43,004.62 and 18,422.16

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Solution

The fourth proportional to 31,166.90, 43,004.62 and 18,422.16 is: 25,419.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,166.90 : 43,004.62 = 18,422.16 : x
  2. Step 2: Convert to fraction form
    31,166.90/43,004.62 = 18,422.16/x
  3. Step 3: Cross multiply
    31,166.90x = 43,004.62 × 18,422.16
  4. Step 4: Simplify right side
    31,166.90x = 792,237,852.14
  5. Step 5: Solve for x
    x = 792,237,852.14/31,166.90
  6. Step 6: Final answer
    x = 25,419.21

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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.