Home / 31,549.72-43,516.27-20,222.42

Finding the Fourth Proportional to 31,549.72, 43,516.27 and 20,222.42

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Solution

The fourth proportional to 31,549.72, 43,516.27 and 20,222.42 is: 27,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,549.72 : 43,516.27 = 20,222.42 : x
  2. Step 2: Convert to fraction form
    31,549.72/43,516.27 = 20,222.42/x
  3. Step 3: Cross multiply
    31,549.72x = 43,516.27 × 20,222.42
  4. Step 4: Simplify right side
    31,549.72x = 880,004,288.77
  5. Step 5: Solve for x
    x = 880,004,288.77/31,549.72
  6. Step 6: Final answer
    x = 27,892.62

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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.