Home / 20,263.86-27,966.60-11,880.36

Finding the Fourth Proportional to 20,263.86, 27,966.60 and 11,880.36

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Solution

The fourth proportional to 20,263.86, 27,966.60 and 11,880.36 is: 16,396.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,263.86 : 27,966.60 = 11,880.36 : x
  2. Step 2: Convert to fraction form
    20,263.86/27,966.60 = 11,880.36/x
  3. Step 3: Cross multiply
    20,263.86x = 27,966.60 × 11,880.36
  4. Step 4: Simplify right side
    20,263.86x = 332,253,275.98
  5. Step 5: Solve for x
    x = 332,253,275.98/20,263.86
  6. Step 6: Final answer
    x = 16,396.35

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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.