Home / 30,726.46-42,405.69-18,797.73

Finding the Fourth Proportional to 30,726.46, 42,405.69 and 18,797.73

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Solution

The fourth proportional to 30,726.46, 42,405.69 and 18,797.73 is: 25,942.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,726.46 : 42,405.69 = 18,797.73 : x
  2. Step 2: Convert to fraction form
    30,726.46/42,405.69 = 18,797.73/x
  3. Step 3: Cross multiply
    30,726.46x = 42,405.69 × 18,797.73
  4. Step 4: Simplify right side
    30,726.46x = 797,130,711.08
  5. Step 5: Solve for x
    x = 797,130,711.08/30,726.46
  6. Step 6: Final answer
    x = 25,942.81

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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.