Home / 19,985.92-27,577.40-11,486.39

Finding the Fourth Proportional to 19,985.92, 27,577.40 and 11,486.39

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Solution

The fourth proportional to 19,985.92, 27,577.40 and 11,486.39 is: 15,849.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.92 : 27,577.40 = 11,486.39 : x
  2. Step 2: Convert to fraction form
    19,985.92/27,577.40 = 11,486.39/x
  3. Step 3: Cross multiply
    19,985.92x = 27,577.40 × 11,486.39
  4. Step 4: Simplify right side
    19,985.92x = 316,764,576.27
  5. Step 5: Solve for x
    x = 316,764,576.27/19,985.92
  6. Step 6: Final answer
    x = 15,849.39

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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.