Home / 43,393.43-65,090.69-13,811.15

Finding the Fourth Proportional to 43,393.43, 65,090.69 and 13,811.15

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Solution

The fourth proportional to 43,393.43, 65,090.69 and 13,811.15 is: 20,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,393.43 : 65,090.69 = 13,811.15 : x
  2. Step 2: Convert to fraction form
    43,393.43/65,090.69 = 13,811.15/x
  3. Step 3: Cross multiply
    43,393.43x = 65,090.69 × 13,811.15
  4. Step 4: Simplify right side
    43,393.43x = 898,977,214.14
  5. Step 5: Solve for x
    x = 898,977,214.14/43,393.43
  6. Step 6: Final answer
    x = 20,716.90

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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.