Home / 30,830.11-46,243.26-18,986.14

Finding the Fourth Proportional to 30,830.11, 46,243.26 and 18,986.14

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Solution

The fourth proportional to 30,830.11, 46,243.26 and 18,986.14 is: 28,478.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,830.11 : 46,243.26 = 18,986.14 : x
  2. Step 2: Convert to fraction form
    30,830.11/46,243.26 = 18,986.14/x
  3. Step 3: Cross multiply
    30,830.11x = 46,243.26 × 18,986.14
  4. Step 4: Simplify right side
    30,830.11x = 877,980,777.20
  5. Step 5: Solve for x
    x = 877,980,777.20/30,830.11
  6. Step 6: Final answer
    x = 28,478.03

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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.