Home / 29,380.74-40,530.38-18,759.20

Finding the Fourth Proportional to 29,380.74, 40,530.38 and 18,759.20

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Solution

The fourth proportional to 29,380.74, 40,530.38 and 18,759.20 is: 25,878.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,380.74 : 40,530.38 = 18,759.20 : x
  2. Step 2: Convert to fraction form
    29,380.74/40,530.38 = 18,759.20/x
  3. Step 3: Cross multiply
    29,380.74x = 40,530.38 × 18,759.20
  4. Step 4: Simplify right side
    29,380.74x = 760,317,504.50
  5. Step 5: Solve for x
    x = 760,317,504.50/29,380.74
  6. Step 6: Final answer
    x = 25,878.09

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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.