Home / 20,045.79-27,662.78-11,092.76

Finding the Fourth Proportional to 20,045.79, 27,662.78 and 11,092.76

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Solution

The fourth proportional to 20,045.79, 27,662.78 and 11,092.76 is: 15,307.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.79 : 27,662.78 = 11,092.76 : x
  2. Step 2: Convert to fraction form
    20,045.79/27,662.78 = 11,092.76/x
  3. Step 3: Cross multiply
    20,045.79x = 27,662.78 × 11,092.76
  4. Step 4: Simplify right side
    20,045.79x = 306,856,385.70
  5. Step 5: Solve for x
    x = 306,856,385.70/20,045.79
  6. Step 6: Final answer
    x = 15,307.77

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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.