Home / 30,830.58-46,245.87-19,742.49

Finding the Fourth Proportional to 30,830.58, 46,245.87 and 19,742.49

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Solution

The fourth proportional to 30,830.58, 46,245.87 and 19,742.49 is: 29,613.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,830.58 : 46,245.87 = 19,742.49 : x
  2. Step 2: Convert to fraction form
    30,830.58/46,245.87 = 19,742.49/x
  3. Step 3: Cross multiply
    30,830.58x = 46,245.87 × 19,742.49
  4. Step 4: Simplify right side
    30,830.58x = 913,008,626.02
  5. Step 5: Solve for x
    x = 913,008,626.02/30,830.58
  6. Step 6: Final answer
    x = 29,613.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.