Home / 20,191.26-27,865.71-13,810.62

Finding the Fourth Proportional to 20,191.26, 27,865.71 and 13,810.62

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Solution

The fourth proportional to 20,191.26, 27,865.71 and 13,810.62 is: 19,059.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.26 : 27,865.71 = 13,810.62 : x
  2. Step 2: Convert to fraction form
    20,191.26/27,865.71 = 13,810.62/x
  3. Step 3: Cross multiply
    20,191.26x = 27,865.71 × 13,810.62
  4. Step 4: Simplify right side
    20,191.26x = 384,842,731.84
  5. Step 5: Solve for x
    x = 384,842,731.84/20,191.26
  6. Step 6: Final answer
    x = 19,059.87

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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.