Home / 20,480.44-28,275.06-19,299.48

Finding the Fourth Proportional to 20,480.44, 28,275.06 and 19,299.48

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Solution

The fourth proportional to 20,480.44, 28,275.06 and 19,299.48 is: 26,644.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,480.44 : 28,275.06 = 19,299.48 : x
  2. Step 2: Convert to fraction form
    20,480.44/28,275.06 = 19,299.48/x
  3. Step 3: Cross multiply
    20,480.44x = 28,275.06 × 19,299.48
  4. Step 4: Simplify right side
    20,480.44x = 545,693,954.97
  5. Step 5: Solve for x
    x = 545,693,954.97/20,480.44
  6. Step 6: Final answer
    x = 26,644.64

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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.