Home / 20,076.05-27,703.79-11,123.02

Finding the Fourth Proportional to 20,076.05, 27,703.79 and 11,123.02

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Solution

The fourth proportional to 20,076.05, 27,703.79 and 11,123.02 is: 15,349.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.05 : 27,703.79 = 11,123.02 : x
  2. Step 2: Convert to fraction form
    20,076.05/27,703.79 = 11,123.02/x
  3. Step 3: Cross multiply
    20,076.05x = 27,703.79 × 11,123.02
  4. Step 4: Simplify right side
    20,076.05x = 308,149,810.25
  5. Step 5: Solve for x
    x = 308,149,810.25/20,076.05
  6. Step 6: Final answer
    x = 15,349.13

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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.