Home / 31,109.70-46,664.55-19,299.90

Finding the Fourth Proportional to 31,109.70, 46,664.55 and 19,299.90

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Solution

The fourth proportional to 31,109.70, 46,664.55 and 19,299.90 is: 28,949.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,109.70 : 46,664.55 = 19,299.90 : x
  2. Step 2: Convert to fraction form
    31,109.70/46,664.55 = 19,299.90/x
  3. Step 3: Cross multiply
    31,109.70x = 46,664.55 × 19,299.90
  4. Step 4: Simplify right side
    31,109.70x = 900,621,148.55
  5. Step 5: Solve for x
    x = 900,621,148.55/31,109.70
  6. Step 6: Final answer
    x = 28,949.85

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Similar ratio
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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.