Home / 20,759.80-31,133.93-5,763.47

Finding the Fourth Proportional to 20,759.80, 31,133.93 and 5,763.47

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Solution

The fourth proportional to 20,759.80, 31,133.93 and 5,763.47 is: 8,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.80 : 31,133.93 = 5,763.47 : x
  2. Step 2: Convert to fraction form
    20,759.80/31,133.93 = 5,763.47/x
  3. Step 3: Cross multiply
    20,759.80x = 31,133.93 × 5,763.47
  4. Step 4: Simplify right side
    20,759.80x = 179,439,471.54
  5. Step 5: Solve for x
    x = 179,439,471.54/20,759.80
  6. Step 6: Final answer
    x = 8,643.60

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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.