Home / 14,154.43-21,231.65-13,921.72

Finding the Fourth Proportional to 14,154.43, 21,231.65 and 13,921.72

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Solution

The fourth proportional to 14,154.43, 21,231.65 and 13,921.72 is: 20,882.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154.43 : 21,231.65 = 13,921.72 : x
  2. Step 2: Convert to fraction form
    14,154.43/21,231.65 = 13,921.72/x
  3. Step 3: Cross multiply
    14,154.43x = 21,231.65 × 13,921.72
  4. Step 4: Simplify right side
    14,154.43x = 295,581,187.59
  5. Step 5: Solve for x
    x = 295,581,187.59/14,154.43
  6. Step 6: Final answer
    x = 20,882.59

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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.