Home / 21,960.04-30,273.06-13,561.96

Finding the Fourth Proportional to 21,960.04, 30,273.06 and 13,561.96

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Solution

The fourth proportional to 21,960.04, 30,273.06 and 13,561.96 is: 18,695.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.04 : 30,273.06 = 13,561.96 : x
  2. Step 2: Convert to fraction form
    21,960.04/30,273.06 = 13,561.96/x
  3. Step 3: Cross multiply
    21,960.04x = 30,273.06 × 13,561.96
  4. Step 4: Simplify right side
    21,960.04x = 410,562,028.80
  5. Step 5: Solve for x
    x = 410,562,028.80/21,960.04
  6. Step 6: Final answer
    x = 18,695.87

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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.