Home / 19,577.80-27,020.16-11,511.04

Finding the Fourth Proportional to 19,577.80, 27,020.16 and 11,511.04

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Solution

The fourth proportional to 19,577.80, 27,020.16 and 11,511.04 is: 15,886.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,577.80 : 27,020.16 = 11,511.04 : x
  2. Step 2: Convert to fraction form
    19,577.80/27,020.16 = 11,511.04/x
  3. Step 3: Cross multiply
    19,577.80x = 27,020.16 × 11,511.04
  4. Step 4: Simplify right side
    19,577.80x = 311,030,142.57
  5. Step 5: Solve for x
    x = 311,030,142.57/19,577.80
  6. Step 6: Final answer
    x = 15,886.88

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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.