Home / 31,609.58-43,621.18-18,180.48

Finding the Fourth Proportional to 31,609.58, 43,621.18 and 18,180.48

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Solution

The fourth proportional to 31,609.58, 43,621.18 and 18,180.48 is: 25,089.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,609.58 : 43,621.18 = 18,180.48 : x
  2. Step 2: Convert to fraction form
    31,609.58/43,621.18 = 18,180.48/x
  3. Step 3: Cross multiply
    31,609.58x = 43,621.18 × 18,180.48
  4. Step 4: Simplify right side
    31,609.58x = 793,053,945.12
  5. Step 5: Solve for x
    x = 793,053,945.12/31,609.58
  6. Step 6: Final answer
    x = 25,089.04

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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.