Home / 20,273.03-27,976.80-11,320.55

Finding the Fourth Proportional to 20,273.03, 27,976.80 and 11,320.55

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Solution

The fourth proportional to 20,273.03, 27,976.80 and 11,320.55 is: 15,622.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.03 : 27,976.80 = 11,320.55 : x
  2. Step 2: Convert to fraction form
    20,273.03/27,976.80 = 11,320.55/x
  3. Step 3: Cross multiply
    20,273.03x = 27,976.80 × 11,320.55
  4. Step 4: Simplify right side
    20,273.03x = 316,712,763.24
  5. Step 5: Solve for x
    x = 316,712,763.24/20,273.03
  6. Step 6: Final answer
    x = 15,622.37

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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.