Home / 31,281.45-43,168.20-16,941.05

Finding the Fourth Proportional to 31,281.45, 43,168.20 and 16,941.05

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Solution

The fourth proportional to 31,281.45, 43,168.20 and 16,941.05 is: 23,378.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,281.45 : 43,168.20 = 16,941.05 : x
  2. Step 2: Convert to fraction form
    31,281.45/43,168.20 = 16,941.05/x
  3. Step 3: Cross multiply
    31,281.45x = 43,168.20 × 16,941.05
  4. Step 4: Simplify right side
    31,281.45x = 731,314,777.88
  5. Step 5: Solve for x
    x = 731,314,777.88/31,281.45
  6. Step 6: Final answer
    x = 23,378.54

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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.