Home / 20,166.80-27,829.55-11,214.06

Finding the Fourth Proportional to 20,166.80, 27,829.55 and 11,214.06

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Solution

The fourth proportional to 20,166.80, 27,829.55 and 11,214.06 is: 15,475.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.80 : 27,829.55 = 11,214.06 : x
  2. Step 2: Convert to fraction form
    20,166.80/27,829.55 = 11,214.06/x
  3. Step 3: Cross multiply
    20,166.80x = 27,829.55 × 11,214.06
  4. Step 4: Simplify right side
    20,166.80x = 312,082,187.40
  5. Step 5: Solve for x
    x = 312,082,187.40/20,166.80
  6. Step 6: Final answer
    x = 15,475.05

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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.