Home / 30,890.74-46,418.04-16,861

Finding the Fourth Proportional to 30,890.74, 46,418.04 and 16,861

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Solution

The fourth proportional to 30,890.74, 46,418.04 and 16,861 is: 25,336.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,890.74 : 46,418.04 = 16,861 : x
  2. Step 2: Convert to fraction form
    30,890.74/46,418.04 = 16,861/x
  3. Step 3: Cross multiply
    30,890.74x = 46,418.04 × 16,861
  4. Step 4: Simplify right side
    30,890.74x = 782,654,572.44
  5. Step 5: Solve for x
    x = 782,654,572.44/30,890.74
  6. Step 6: Final answer
    x = 25,336.22

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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.