Home / 20,167.02-27,828.90-11,214

Finding the Fourth Proportional to 20,167.02, 27,828.90 and 11,214

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Solution

The fourth proportional to 20,167.02, 27,828.90 and 11,214 is: 15,474.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.02 : 27,828.90 = 11,214 : x
  2. Step 2: Convert to fraction form
    20,167.02/27,828.90 = 11,214/x
  3. Step 3: Cross multiply
    20,167.02x = 27,828.90 × 11,214
  4. Step 4: Simplify right side
    20,167.02x = 312,073,284.60
  5. Step 5: Solve for x
    x = 312,073,284.60/20,167.02
  6. Step 6: Final answer
    x = 15,474.44

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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.