Home / 20,160.48-27,823.26-11,209.80

Finding the Fourth Proportional to 20,160.48, 27,823.26 and 11,209.80

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Solution

The fourth proportional to 20,160.48, 27,823.26 and 11,209.80 is: 15,470.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.48 : 27,823.26 = 11,209.80 : x
  2. Step 2: Convert to fraction form
    20,160.48/27,823.26 = 11,209.80/x
  3. Step 3: Cross multiply
    20,160.48x = 27,823.26 × 11,209.80
  4. Step 4: Simplify right side
    20,160.48x = 311,893,179.95
  5. Step 5: Solve for x
    x = 311,893,179.95/20,160.48
  6. Step 6: Final answer
    x = 15,470.52

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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.