Home / 36,431.62-50,276.65-20,516.64

Finding the Fourth Proportional to 36,431.62, 50,276.65 and 20,516.64

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Solution

The fourth proportional to 36,431.62, 50,276.65 and 20,516.64 is: 28,313.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,431.62 : 50,276.65 = 20,516.64 : x
  2. Step 2: Convert to fraction form
    36,431.62/50,276.65 = 20,516.64/x
  3. Step 3: Cross multiply
    36,431.62x = 50,276.65 × 20,516.64
  4. Step 4: Simplify right side
    36,431.62x = 1,031,508,009.90
  5. Step 5: Solve for x
    x = 1,031,508,009.90/36,431.62
  6. Step 6: Final answer
    x = 28,313.53

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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.