Home / 18,431.10-27,624.76-10,623.78

Finding the Fourth Proportional to 18,431.10, 27,624.76 and 10,623.78

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Solution

The fourth proportional to 18,431.10, 27,624.76 and 10,623.78 is: 15,923.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.10 : 27,624.76 = 10,623.78 : x
  2. Step 2: Convert to fraction form
    18,431.10/27,624.76 = 10,623.78/x
  3. Step 3: Cross multiply
    18,431.10x = 27,624.76 × 10,623.78
  4. Step 4: Simplify right side
    18,431.10x = 293,479,372.79
  5. Step 5: Solve for x
    x = 293,479,372.79/18,431.10
  6. Step 6: Final answer
    x = 15,923.05

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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.