Home / 43,191.50-64,682.76-20,949.80

Finding the Fourth Proportional to 43,191.50, 64,682.76 and 20,949.80

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Solution

The fourth proportional to 43,191.50, 64,682.76 and 20,949.80 is: 31,374.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,191.50 : 64,682.76 = 20,949.80 : x
  2. Step 2: Convert to fraction form
    43,191.50/64,682.76 = 20,949.80/x
  3. Step 3: Cross multiply
    43,191.50x = 64,682.76 × 20,949.80
  4. Step 4: Simplify right side
    43,191.50x = 1,355,090,885.45
  5. Step 5: Solve for x
    x = 1,355,090,885.45/43,191.50
  6. Step 6: Final answer
    x = 31,374.02

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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.