Home / 31,817.12-43,923.44-19,887.04

Finding the Fourth Proportional to 31,817.12, 43,923.44 and 19,887.04

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Solution

The fourth proportional to 31,817.12, 43,923.44 and 19,887.04 is: 27,454.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,817.12 : 43,923.44 = 19,887.04 : x
  2. Step 2: Convert to fraction form
    31,817.12/43,923.44 = 19,887.04/x
  3. Step 3: Cross multiply
    31,817.12x = 43,923.44 × 19,887.04
  4. Step 4: Simplify right side
    31,817.12x = 873,507,208.22
  5. Step 5: Solve for x
    x = 873,507,208.22/31,817.12
  6. Step 6: Final answer
    x = 27,454.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.