Home / 19,982.75-27,577.20-13,256.91

Finding the Fourth Proportional to 19,982.75, 27,577.20 and 13,256.91

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Solution

The fourth proportional to 19,982.75, 27,577.20 and 13,256.91 is: 18,295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.75 : 27,577.20 = 13,256.91 : x
  2. Step 2: Convert to fraction form
    19,982.75/27,577.20 = 13,256.91/x
  3. Step 3: Cross multiply
    19,982.75x = 27,577.20 × 13,256.91
  4. Step 4: Simplify right side
    19,982.75x = 365,588,527.40
  5. Step 5: Solve for x
    x = 365,588,527.40/19,982.75
  6. Step 6: Final answer
    x = 18,295.21

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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.