Home / 43,610.50-65,416.38-12,445.75

Finding the Fourth Proportional to 43,610.50, 65,416.38 and 12,445.75

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Solution

The fourth proportional to 43,610.50, 65,416.38 and 12,445.75 is: 18,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,610.50 : 65,416.38 = 12,445.75 : x
  2. Step 2: Convert to fraction form
    43,610.50/65,416.38 = 12,445.75/x
  3. Step 3: Cross multiply
    43,610.50x = 65,416.38 × 12,445.75
  4. Step 4: Simplify right side
    43,610.50x = 814,155,911.39
  5. Step 5: Solve for x
    x = 814,155,911.39/43,610.50
  6. Step 6: Final answer
    x = 18,668.80

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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.