Home / 14,049.38-20,971.58-12,275.90

Finding the Fourth Proportional to 14,049.38, 20,971.58 and 12,275.90

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Solution

The fourth proportional to 14,049.38, 20,971.58 and 12,275.90 is: 18,324.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,049.38 : 20,971.58 = 12,275.90 : x
  2. Step 2: Convert to fraction form
    14,049.38/20,971.58 = 12,275.90/x
  3. Step 3: Cross multiply
    14,049.38x = 20,971.58 × 12,275.90
  4. Step 4: Simplify right side
    14,049.38x = 257,444,975.92
  5. Step 5: Solve for x
    x = 257,444,975.92/14,049.38
  6. Step 6: Final answer
    x = 18,324.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.