Home / 31,177.85-46,739.09-11,451.78

Finding the Fourth Proportional to 31,177.85, 46,739.09 and 11,451.78

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Solution

The fourth proportional to 31,177.85, 46,739.09 and 11,451.78 is: 17,167.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,177.85 : 46,739.09 = 11,451.78 : x
  2. Step 2: Convert to fraction form
    31,177.85/46,739.09 = 11,451.78/x
  3. Step 3: Cross multiply
    31,177.85x = 46,739.09 × 11,451.78
  4. Step 4: Simplify right side
    31,177.85x = 535,245,804.71
  5. Step 5: Solve for x
    x = 535,245,804.71/31,177.85
  6. Step 6: Final answer
    x = 17,167.50

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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.