Home / 30,687.40-46,004.10-20,794.60

Finding the Fourth Proportional to 30,687.40, 46,004.10 and 20,794.60

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Solution

The fourth proportional to 30,687.40, 46,004.10 and 20,794.60 is: 31,173.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,687.40 : 46,004.10 = 20,794.60 : x
  2. Step 2: Convert to fraction form
    30,687.40/46,004.10 = 20,794.60/x
  3. Step 3: Cross multiply
    30,687.40x = 46,004.10 × 20,794.60
  4. Step 4: Simplify right side
    30,687.40x = 956,636,857.86
  5. Step 5: Solve for x
    x = 956,636,857.86/30,687.40
  6. Step 6: Final answer
    x = 31,173.60

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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.