Home / 43,408.99-65,118.26-13,816.45

Finding the Fourth Proportional to 43,408.99, 65,118.26 and 13,816.45

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Solution

The fourth proportional to 43,408.99, 65,118.26 and 13,816.45 is: 20,726.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,408.99 : 65,118.26 = 13,816.45 : x
  2. Step 2: Convert to fraction form
    43,408.99/65,118.26 = 13,816.45/x
  3. Step 3: Cross multiply
    43,408.99x = 65,118.26 × 13,816.45
  4. Step 4: Simplify right side
    43,408.99x = 899,703,183.38
  5. Step 5: Solve for x
    x = 899,703,183.38/43,408.99
  6. Step 6: Final answer
    x = 20,726.19

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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.