Home / 20,002.81-27,602.73-11,945.55

Finding the Fourth Proportional to 20,002.81, 27,602.73 and 11,945.55

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Solution

The fourth proportional to 20,002.81, 27,602.73 and 11,945.55 is: 16,484.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,002.81 : 27,602.73 = 11,945.55 : x
  2. Step 2: Convert to fraction form
    20,002.81/27,602.73 = 11,945.55/x
  3. Step 3: Cross multiply
    20,002.81x = 27,602.73 × 11,945.55
  4. Step 4: Simplify right side
    20,002.81x = 329,729,791.35
  5. Step 5: Solve for x
    x = 329,729,791.35/20,002.81
  6. Step 6: Final answer
    x = 16,484.17

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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.