Home / 18,579.42-25,649.55-14,321.16

Finding the Fourth Proportional to 18,579.42, 25,649.55 and 14,321.16

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Solution

The fourth proportional to 18,579.42, 25,649.55 and 14,321.16 is: 19,770.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.42 : 25,649.55 = 14,321.16 : x
  2. Step 2: Convert to fraction form
    18,579.42/25,649.55 = 14,321.16/x
  3. Step 3: Cross multiply
    18,579.42x = 25,649.55 × 14,321.16
  4. Step 4: Simplify right side
    18,579.42x = 367,331,309.48
  5. Step 5: Solve for x
    x = 367,331,309.48/18,579.42
  6. Step 6: Final answer
    x = 19,770.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.