Home / 20,960.83-28,926.06-11,400.82

Finding the Fourth Proportional to 20,960.83, 28,926.06 and 11,400.82

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Solution

The fourth proportional to 20,960.83, 28,926.06 and 11,400.82 is: 15,733.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.83 : 28,926.06 = 11,400.82 : x
  2. Step 2: Convert to fraction form
    20,960.83/28,926.06 = 11,400.82/x
  3. Step 3: Cross multiply
    20,960.83x = 28,926.06 × 11,400.82
  4. Step 4: Simplify right side
    20,960.83x = 329,780,803.37
  5. Step 5: Solve for x
    x = 329,780,803.37/20,960.83
  6. Step 6: Final answer
    x = 15,733.19

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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.