Home / 19,967.39-27,555.20-11,015.21

Finding the Fourth Proportional to 19,967.39, 27,555.20 and 11,015.21

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Solution

The fourth proportional to 19,967.39, 27,555.20 and 11,015.21 is: 15,201.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,967.39 : 27,555.20 = 11,015.21 : x
  2. Step 2: Convert to fraction form
    19,967.39/27,555.20 = 11,015.21/x
  3. Step 3: Cross multiply
    19,967.39x = 27,555.20 × 11,015.21
  4. Step 4: Simplify right side
    19,967.39x = 303,526,314.59
  5. Step 5: Solve for x
    x = 303,526,314.59/19,967.39
  6. Step 6: Final answer
    x = 15,201.10

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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.