Home / 20,008.98-27,621.18-11,945.40

Finding the Fourth Proportional to 20,008.98, 27,621.18 and 11,945.40

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Solution

The fourth proportional to 20,008.98, 27,621.18 and 11,945.40 is: 16,489.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.98 : 27,621.18 = 11,945.40 : x
  2. Step 2: Convert to fraction form
    20,008.98/27,621.18 = 11,945.40/x
  3. Step 3: Cross multiply
    20,008.98x = 27,621.18 × 11,945.40
  4. Step 4: Simplify right side
    20,008.98x = 329,946,043.57
  5. Step 5: Solve for x
    x = 329,946,043.57/20,008.98
  6. Step 6: Final answer
    x = 16,489.90

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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.