Home / 20,503.88-30,717.27-11,712.14

Finding the Fourth Proportional to 20,503.88, 30,717.27 and 11,712.14

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Solution

The fourth proportional to 20,503.88, 30,717.27 and 11,712.14 is: 17,546.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,503.88 : 30,717.27 = 11,712.14 : x
  2. Step 2: Convert to fraction form
    20,503.88/30,717.27 = 11,712.14/x
  3. Step 3: Cross multiply
    20,503.88x = 30,717.27 × 11,712.14
  4. Step 4: Simplify right side
    20,503.88x = 359,764,966.66
  5. Step 5: Solve for x
    x = 359,764,966.66/20,503.88
  6. Step 6: Final answer
    x = 17,546.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.