Home / 31,650.30-43,680.06-18,225.90

Finding the Fourth Proportional to 31,650.30, 43,680.06 and 18,225.90

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Solution

The fourth proportional to 31,650.30, 43,680.06 and 18,225.90 is: 25,153.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,650.30 : 43,680.06 = 18,225.90 : x
  2. Step 2: Convert to fraction form
    31,650.30/43,680.06 = 18,225.90/x
  3. Step 3: Cross multiply
    31,650.30x = 43,680.06 × 18,225.90
  4. Step 4: Simplify right side
    31,650.30x = 796,108,405.55
  5. Step 5: Solve for x
    x = 796,108,405.55/31,650.30
  6. Step 6: Final answer
    x = 25,153.27

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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.