Home / 19,908.11-27,472.40-11,731.64

Finding the Fourth Proportional to 19,908.11, 27,472.40 and 11,731.64

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Solution

The fourth proportional to 19,908.11, 27,472.40 and 11,731.64 is: 16,189.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,908.11 : 27,472.40 = 11,731.64 : x
  2. Step 2: Convert to fraction form
    19,908.11/27,472.40 = 11,731.64/x
  3. Step 3: Cross multiply
    19,908.11x = 27,472.40 × 11,731.64
  4. Step 4: Simplify right side
    19,908.11x = 322,296,154.71
  5. Step 5: Solve for x
    x = 322,296,154.71/19,908.11
  6. Step 6: Final answer
    x = 16,189.19

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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.