Home / 20,706.88-28,581.94-11,760.34

Finding the Fourth Proportional to 20,706.88, 28,581.94 and 11,760.34

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Solution

The fourth proportional to 20,706.88, 28,581.94 and 11,760.34 is: 16,232.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,706.88 : 28,581.94 = 11,760.34 : x
  2. Step 2: Convert to fraction form
    20,706.88/28,581.94 = 11,760.34/x
  3. Step 3: Cross multiply
    20,706.88x = 28,581.94 × 11,760.34
  4. Step 4: Simplify right side
    20,706.88x = 336,133,332.26
  5. Step 5: Solve for x
    x = 336,133,332.26/20,706.88
  6. Step 6: Final answer
    x = 16,232.93

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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.