Home / 20,119.05-27,765.61-11,621.53

Finding the Fourth Proportional to 20,119.05, 27,765.61 and 11,621.53

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Solution

The fourth proportional to 20,119.05, 27,765.61 and 11,621.53 is: 16,038.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.05 : 27,765.61 = 11,621.53 : x
  2. Step 2: Convert to fraction form
    20,119.05/27,765.61 = 11,621.53/x
  3. Step 3: Cross multiply
    20,119.05x = 27,765.61 × 11,621.53
  4. Step 4: Simplify right side
    20,119.05x = 322,678,814.70
  5. Step 5: Solve for x
    x = 322,678,814.70/20,119.05
  6. Step 6: Final answer
    x = 16,038.47

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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.