Home / 20,180-27,848.40-11,796.50

Finding the Fourth Proportional to 20,180, 27,848.40 and 11,796.50

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Solution

The fourth proportional to 20,180, 27,848.40 and 11,796.50 is: 16,279.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180 : 27,848.40 = 11,796.50 : x
  2. Step 2: Convert to fraction form
    20,180/27,848.40 = 11,796.50/x
  3. Step 3: Cross multiply
    20,180x = 27,848.40 × 11,796.50
  4. Step 4: Simplify right side
    20,180x = 328,513,650.60
  5. Step 5: Solve for x
    x = 328,513,650.60/20,180
  6. Step 6: Final answer
    x = 16,279.17

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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.