Home / 20,165.16-27,823.83-11,780.04

Finding the Fourth Proportional to 20,165.16, 27,823.83 and 11,780.04

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Solution

The fourth proportional to 20,165.16, 27,823.83 and 11,780.04 is: 16,254.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.16 : 27,823.83 = 11,780.04 : x
  2. Step 2: Convert to fraction form
    20,165.16/27,823.83 = 11,780.04/x
  3. Step 3: Cross multiply
    20,165.16x = 27,823.83 × 11,780.04
  4. Step 4: Simplify right side
    20,165.16x = 327,765,830.35
  5. Step 5: Solve for x
    x = 327,765,830.35/20,165.16
  6. Step 6: Final answer
    x = 16,254.07

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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.