Home / 20,167.45-27,827.82-11,214.72

Finding the Fourth Proportional to 20,167.45, 27,827.82 and 11,214.72

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Solution

The fourth proportional to 20,167.45, 27,827.82 and 11,214.72 is: 15,474.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.45 : 27,827.82 = 11,214.72 : x
  2. Step 2: Convert to fraction form
    20,167.45/27,827.82 = 11,214.72/x
  3. Step 3: Cross multiply
    20,167.45x = 27,827.82 × 11,214.72
  4. Step 4: Simplify right side
    20,167.45x = 312,081,209.51
  5. Step 5: Solve for x
    x = 312,081,209.51/20,167.45
  6. Step 6: Final answer
    x = 15,474.50

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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.