Home / 20,046.78-27,666.96-11,663.28

Finding the Fourth Proportional to 20,046.78, 27,666.96 and 11,663.28

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Solution

The fourth proportional to 20,046.78, 27,666.96 and 11,663.28 is: 16,096.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,046.78 : 27,666.96 = 11,663.28 : x
  2. Step 2: Convert to fraction form
    20,046.78/27,666.96 = 11,663.28/x
  3. Step 3: Cross multiply
    20,046.78x = 27,666.96 × 11,663.28
  4. Step 4: Simplify right side
    20,046.78x = 322,687,501.23
  5. Step 5: Solve for x
    x = 322,687,501.23/20,046.78
  6. Step 6: Final answer
    x = 16,096.72

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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.