Home / 20,155.04-27,814.07-11,203.38

Finding the Fourth Proportional to 20,155.04, 27,814.07 and 11,203.38

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Solution

The fourth proportional to 20,155.04, 27,814.07 and 11,203.38 is: 15,460.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.04 : 27,814.07 = 11,203.38 : x
  2. Step 2: Convert to fraction form
    20,155.04/27,814.07 = 11,203.38/x
  3. Step 3: Cross multiply
    20,155.04x = 27,814.07 × 11,203.38
  4. Step 4: Simplify right side
    20,155.04x = 311,611,560.55
  5. Step 5: Solve for x
    x = 311,611,560.55/20,155.04
  6. Step 6: Final answer
    x = 15,460.72

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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.