Home / 31,769.12-43,869.25-19,852.82

Finding the Fourth Proportional to 31,769.12, 43,869.25 and 19,852.82

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Solution

The fourth proportional to 31,769.12, 43,869.25 and 19,852.82 is: 27,414.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,769.12 : 43,869.25 = 19,852.82 : x
  2. Step 2: Convert to fraction form
    31,769.12/43,869.25 = 19,852.82/x
  3. Step 3: Cross multiply
    31,769.12x = 43,869.25 × 19,852.82
  4. Step 4: Simplify right side
    31,769.12x = 870,928,323.79
  5. Step 5: Solve for x
    x = 870,928,323.79/31,769.12
  6. Step 6: Final answer
    x = 27,414.30

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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.