Home / 20,077.73-27,706.81-11,579.87

Finding the Fourth Proportional to 20,077.73, 27,706.81 and 11,579.87

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Solution

The fourth proportional to 20,077.73, 27,706.81 and 11,579.87 is: 15,979.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.73 : 27,706.81 = 11,579.87 : x
  2. Step 2: Convert to fraction form
    20,077.73/27,706.81 = 11,579.87/x
  3. Step 3: Cross multiply
    20,077.73x = 27,706.81 × 11,579.87
  4. Step 4: Simplify right side
    20,077.73x = 320,841,242.02
  5. Step 5: Solve for x
    x = 320,841,242.02/20,077.73
  6. Step 6: Final answer
    x = 15,979.95

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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.