Home / 21,192.08-31,763.32-14,163.60

Finding the Fourth Proportional to 21,192.08, 31,763.32 and 14,163.60

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Solution

The fourth proportional to 21,192.08, 31,763.32 and 14,163.60 is: 21,228.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,192.08 : 31,763.32 = 14,163.60 : x
  2. Step 2: Convert to fraction form
    21,192.08/31,763.32 = 14,163.60/x
  3. Step 3: Cross multiply
    21,192.08x = 31,763.32 × 14,163.60
  4. Step 4: Simplify right side
    21,192.08x = 449,882,959.15
  5. Step 5: Solve for x
    x = 449,882,959.15/21,192.08
  6. Step 6: Final answer
    x = 21,228.83

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1.5x scale

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.