Home / 31,009.86-46,456.25-18,321.75

Finding the Fourth Proportional to 31,009.86, 46,456.25 and 18,321.75

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Solution

The fourth proportional to 31,009.86, 46,456.25 and 18,321.75 is: 27,448.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,009.86 : 46,456.25 = 18,321.75 : x
  2. Step 2: Convert to fraction form
    31,009.86/46,456.25 = 18,321.75/x
  3. Step 3: Cross multiply
    31,009.86x = 46,456.25 × 18,321.75
  4. Step 4: Simplify right side
    31,009.86x = 851,159,798.44
  5. Step 5: Solve for x
    x = 851,159,798.44/31,009.86
  6. Step 6: Final answer
    x = 27,448.04

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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.