Home / 46,420.40-69,640.26-21,107.86

Finding the Fourth Proportional to 46,420.40, 69,640.26 and 21,107.86

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Solution

The fourth proportional to 46,420.40, 69,640.26 and 21,107.86 is: 31,666.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,420.40 : 69,640.26 = 21,107.86 : x
  2. Step 2: Convert to fraction form
    46,420.40/69,640.26 = 21,107.86/x
  3. Step 3: Cross multiply
    46,420.40x = 69,640.26 × 21,107.86
  4. Step 4: Simplify right side
    46,420.40x = 1,469,956,858.44
  5. Step 5: Solve for x
    x = 1,469,956,858.44/46,420.40
  6. Step 6: Final answer
    x = 31,666.18

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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.