Home / 31,725.20-43,779.61-18,297.02

Finding the Fourth Proportional to 31,725.20, 43,779.61 and 18,297.02

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Solution

The fourth proportional to 31,725.20, 43,779.61 and 18,297.02 is: 25,249.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,725.20 : 43,779.61 = 18,297.02 : x
  2. Step 2: Convert to fraction form
    31,725.20/43,779.61 = 18,297.02/x
  3. Step 3: Cross multiply
    31,725.20x = 43,779.61 × 18,297.02
  4. Step 4: Simplify right side
    31,725.20x = 801,036,399.76
  5. Step 5: Solve for x
    x = 801,036,399.76/31,725.20
  6. Step 6: Final answer
    x = 25,249.22

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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.