Home / 19,982.80-27,577.16-11,487.67

Finding the Fourth Proportional to 19,982.80, 27,577.16 and 11,487.67

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Solution

The fourth proportional to 19,982.80, 27,577.16 and 11,487.67 is: 15,853.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.80 : 27,577.16 = 11,487.67 : x
  2. Step 2: Convert to fraction form
    19,982.80/27,577.16 = 11,487.67/x
  3. Step 3: Cross multiply
    19,982.80x = 27,577.16 × 11,487.67
  4. Step 4: Simplify right side
    19,982.80x = 316,797,385.44
  5. Step 5: Solve for x
    x = 316,797,385.44/19,982.80
  6. Step 6: Final answer
    x = 15,853.50

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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.