Home / 20,013.78-27,628.19-14,275.64

Finding the Fourth Proportional to 20,013.78, 27,628.19 and 14,275.64

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Solution

The fourth proportional to 20,013.78, 27,628.19 and 14,275.64 is: 19,706.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.78 : 27,628.19 = 14,275.64 : x
  2. Step 2: Convert to fraction form
    20,013.78/27,628.19 = 14,275.64/x
  3. Step 3: Cross multiply
    20,013.78x = 27,628.19 × 14,275.64
  4. Step 4: Simplify right side
    20,013.78x = 394,410,145.52
  5. Step 5: Solve for x
    x = 394,410,145.52/20,013.78
  6. Step 6: Final answer
    x = 19,706.93

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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.