Home / 18,728.77-27,884.40-18,467.09

Finding the Fourth Proportional to 18,728.77, 27,884.40 and 18,467.09

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Solution

The fourth proportional to 18,728.77, 27,884.40 and 18,467.09 is: 27,494.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.77 : 27,884.40 = 18,467.09 : x
  2. Step 2: Convert to fraction form
    18,728.77/27,884.40 = 18,467.09/x
  3. Step 3: Cross multiply
    18,728.77x = 27,884.40 × 18,467.09
  4. Step 4: Simplify right side
    18,728.77x = 514,943,724.17
  5. Step 5: Solve for x
    x = 514,943,724.17/18,728.77
  6. Step 6: Final answer
    x = 27,494.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.