Home / 43,885.68-65,835-12,716.88

Finding the Fourth Proportional to 43,885.68, 65,835 and 12,716.88

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Solution

The fourth proportional to 43,885.68, 65,835 and 12,716.88 is: 19,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,885.68 : 65,835 = 12,716.88 : x
  2. Step 2: Convert to fraction form
    43,885.68/65,835 = 12,716.88/x
  3. Step 3: Cross multiply
    43,885.68x = 65,835 × 12,716.88
  4. Step 4: Simplify right side
    43,885.68x = 837,215,794.80
  5. Step 5: Solve for x
    x = 837,215,794.80/43,885.68
  6. Step 6: Final answer
    x = 19,077.20

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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.