Home / 31,436.80-43,382.44-17,289.84

Finding the Fourth Proportional to 31,436.80, 43,382.44 and 17,289.84

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Solution

The fourth proportional to 31,436.80, 43,382.44 and 17,289.84 is: 23,859.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.80 : 43,382.44 = 17,289.84 : x
  2. Step 2: Convert to fraction form
    31,436.80/43,382.44 = 17,289.84/x
  3. Step 3: Cross multiply
    31,436.80x = 43,382.44 × 17,289.84
  4. Step 4: Simplify right side
    31,436.80x = 750,075,446.41
  5. Step 5: Solve for x
    x = 750,075,446.41/31,436.80
  6. Step 6: Final answer
    x = 23,859.79

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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.