Home / 20,001.78-27,602.30-11,049.66

Finding the Fourth Proportional to 20,001.78, 27,602.30 and 11,049.66

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Solution

The fourth proportional to 20,001.78, 27,602.30 and 11,049.66 is: 15,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.78 : 27,602.30 = 11,049.66 : x
  2. Step 2: Convert to fraction form
    20,001.78/27,602.30 = 11,049.66/x
  3. Step 3: Cross multiply
    20,001.78x = 27,602.30 × 11,049.66
  4. Step 4: Simplify right side
    20,001.78x = 304,996,057.84
  5. Step 5: Solve for x
    x = 304,996,057.84/20,001.78
  6. Step 6: Final answer
    x = 15,248.45

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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.