Home / 20,154.72-27,814.08-11,202.48

Finding the Fourth Proportional to 20,154.72, 27,814.08 and 11,202.48

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Solution

The fourth proportional to 20,154.72, 27,814.08 and 11,202.48 is: 15,459.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.72 : 27,814.08 = 11,202.48 : x
  2. Step 2: Convert to fraction form
    20,154.72/27,814.08 = 11,202.48/x
  3. Step 3: Cross multiply
    20,154.72x = 27,814.08 × 11,202.48
  4. Step 4: Simplify right side
    20,154.72x = 311,586,674.92
  5. Step 5: Solve for x
    x = 311,586,674.92/20,154.72
  6. Step 6: Final answer
    x = 15,459.74

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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.