Home / 20,154.53-27,813.44-11,203.02

Finding the Fourth Proportional to 20,154.53, 27,813.44 and 11,203.02

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Solution

The fourth proportional to 20,154.53, 27,813.44 and 11,203.02 is: 15,460.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.53 : 27,813.44 = 11,203.02 : x
  2. Step 2: Convert to fraction form
    20,154.53/27,813.44 = 11,203.02/x
  3. Step 3: Cross multiply
    20,154.53x = 27,813.44 × 11,203.02
  4. Step 4: Simplify right side
    20,154.53x = 311,594,552.60
  5. Step 5: Solve for x
    x = 311,594,552.60/20,154.53
  6. Step 6: Final answer
    x = 15,460.27

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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.