Home / 20,251.90-27,960.63-12,708.58

Finding the Fourth Proportional to 20,251.90, 27,960.63 and 12,708.58

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Solution

The fourth proportional to 20,251.90, 27,960.63 and 12,708.58 is: 17,546.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.90 : 27,960.63 = 12,708.58 : x
  2. Step 2: Convert to fraction form
    20,251.90/27,960.63 = 12,708.58/x
  3. Step 3: Cross multiply
    20,251.90x = 27,960.63 × 12,708.58
  4. Step 4: Simplify right side
    20,251.90x = 355,339,903.21
  5. Step 5: Solve for x
    x = 355,339,903.21/20,251.90
  6. Step 6: Final answer
    x = 17,546.00

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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.