Home / 20,167.36-27,829.44-11,214.40

Finding the Fourth Proportional to 20,167.36, 27,829.44 and 11,214.40

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Solution

The fourth proportional to 20,167.36, 27,829.44 and 11,214.40 is: 15,475.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.36 : 27,829.44 = 11,214.40 : x
  2. Step 2: Convert to fraction form
    20,167.36/27,829.44 = 11,214.40/x
  3. Step 3: Cross multiply
    20,167.36x = 27,829.44 × 11,214.40
  4. Step 4: Simplify right side
    20,167.36x = 312,090,471.94
  5. Step 5: Solve for x
    x = 312,090,471.94/20,167.36
  6. Step 6: Final answer
    x = 15,475.03

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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.