Home / 20,154.88-27,814.04-11,202.76

Finding the Fourth Proportional to 20,154.88, 27,814.04 and 11,202.76

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Solution

The fourth proportional to 20,154.88, 27,814.04 and 11,202.76 is: 15,459.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.88 : 27,814.04 = 11,202.76 : x
  2. Step 2: Convert to fraction form
    20,154.88/27,814.04 = 11,202.76/x
  3. Step 3: Cross multiply
    20,154.88x = 27,814.04 × 11,202.76
  4. Step 4: Simplify right side
    20,154.88x = 311,594,014.75
  5. Step 5: Solve for x
    x = 311,594,014.75/20,154.88
  6. Step 6: Final answer
    x = 15,459.98

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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.