Home / 30,777.57-46,147.14-12,999.09

Finding the Fourth Proportional to 30,777.57, 46,147.14 and 12,999.09

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Solution

The fourth proportional to 30,777.57, 46,147.14 and 12,999.09 is: 19,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,777.57 : 46,147.14 = 12,999.09 : x
  2. Step 2: Convert to fraction form
    30,777.57/46,147.14 = 12,999.09/x
  3. Step 3: Cross multiply
    30,777.57x = 46,147.14 × 12,999.09
  4. Step 4: Simplify right side
    30,777.57x = 599,870,826.10
  5. Step 5: Solve for x
    x = 599,870,826.10/30,777.57
  6. Step 6: Final answer
    x = 19,490.52

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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.