Home / 30,761.85-46,090.83-18,890.94

Finding the Fourth Proportional to 30,761.85, 46,090.83 and 18,890.94

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Solution

The fourth proportional to 30,761.85, 46,090.83 and 18,890.94 is: 28,304.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,761.85 : 46,090.83 = 18,890.94 : x
  2. Step 2: Convert to fraction form
    30,761.85/46,090.83 = 18,890.94/x
  3. Step 3: Cross multiply
    30,761.85x = 46,090.83 × 18,890.94
  4. Step 4: Simplify right side
    30,761.85x = 870,699,206.08
  5. Step 5: Solve for x
    x = 870,699,206.08/30,761.85
  6. Step 6: Final answer
    x = 28,304.52

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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.