Home / 18,675.68-27,964.08-15,403.38

Finding the Fourth Proportional to 18,675.68, 27,964.08 and 15,403.38

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Solution

The fourth proportional to 18,675.68, 27,964.08 and 15,403.38 is: 23,064.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.68 : 27,964.08 = 15,403.38 : x
  2. Step 2: Convert to fraction form
    18,675.68/27,964.08 = 15,403.38/x
  3. Step 3: Cross multiply
    18,675.68x = 27,964.08 × 15,403.38
  4. Step 4: Simplify right side
    18,675.68x = 430,741,133.75
  5. Step 5: Solve for x
    x = 430,741,133.75/18,675.68
  6. Step 6: Final answer
    x = 23,064.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.