Home / 31,724.25-43,779.06-19,786.74

Finding the Fourth Proportional to 31,724.25, 43,779.06 and 19,786.74

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Solution

The fourth proportional to 31,724.25, 43,779.06 and 19,786.74 is: 27,305.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,724.25 : 43,779.06 = 19,786.74 : x
  2. Step 2: Convert to fraction form
    31,724.25/43,779.06 = 19,786.74/x
  3. Step 3: Cross multiply
    31,724.25x = 43,779.06 × 19,786.74
  4. Step 4: Simplify right side
    31,724.25x = 866,244,877.66
  5. Step 5: Solve for x
    x = 866,244,877.66/31,724.25
  6. Step 6: Final answer
    x = 27,305.45

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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.