Home / 43,499.90-65,231.46-13,909.76

Finding the Fourth Proportional to 43,499.90, 65,231.46 and 13,909.76

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Solution

The fourth proportional to 43,499.90, 65,231.46 and 13,909.76 is: 20,858.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,499.90 : 65,231.46 = 13,909.76 : x
  2. Step 2: Convert to fraction form
    43,499.90/65,231.46 = 13,909.76/x
  3. Step 3: Cross multiply
    43,499.90x = 65,231.46 × 13,909.76
  4. Step 4: Simplify right side
    43,499.90x = 907,353,953.05
  5. Step 5: Solve for x
    x = 907,353,953.05/43,499.90
  6. Step 6: Final answer
    x = 20,858.76

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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.