Home / 31,107.32-46,635.42-12,379.28

Finding the Fourth Proportional to 31,107.32, 46,635.42 and 12,379.28

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Solution

The fourth proportional to 31,107.32, 46,635.42 and 12,379.28 is: 18,558.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,107.32 : 46,635.42 = 12,379.28 : x
  2. Step 2: Convert to fraction form
    31,107.32/46,635.42 = 12,379.28/x
  3. Step 3: Cross multiply
    31,107.32x = 46,635.42 × 12,379.28
  4. Step 4: Simplify right side
    31,107.32x = 577,312,922.10
  5. Step 5: Solve for x
    x = 577,312,922.10/31,107.32
  6. Step 6: Final answer
    x = 18,558.75

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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.