Home / 31,305.92-46,965.83-9,120.96

Finding the Fourth Proportional to 31,305.92, 46,965.83 and 9,120.96

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Solution

The fourth proportional to 31,305.92, 46,965.83 and 9,120.96 is: 13,683.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,305.92 : 46,965.83 = 9,120.96 : x
  2. Step 2: Convert to fraction form
    31,305.92/46,965.83 = 9,120.96/x
  3. Step 3: Cross multiply
    31,305.92x = 46,965.83 × 9,120.96
  4. Step 4: Simplify right side
    31,305.92x = 428,373,411.19
  5. Step 5: Solve for x
    x = 428,373,411.19/31,305.92
  6. Step 6: Final answer
    x = 13,683.47

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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.