Home / 20,168.18-27,827.99-11,783.06

Finding the Fourth Proportional to 20,168.18, 27,827.99 and 11,783.06

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Solution

The fourth proportional to 20,168.18, 27,827.99 and 11,783.06 is: 16,258.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.18 : 27,827.99 = 11,783.06 : x
  2. Step 2: Convert to fraction form
    20,168.18/27,827.99 = 11,783.06/x
  3. Step 3: Cross multiply
    20,168.18x = 27,827.99 × 11,783.06
  4. Step 4: Simplify right side
    20,168.18x = 327,898,875.85
  5. Step 5: Solve for x
    x = 327,898,875.85/20,168.18
  6. Step 6: Final answer
    x = 16,258.23

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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.