Home / 36,769.91-55,143.90-13,390.88

Finding the Fourth Proportional to 36,769.91, 55,143.90 and 13,390.88

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Solution

The fourth proportional to 36,769.91, 55,143.90 and 13,390.88 is: 20,082.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,769.91 : 55,143.90 = 13,390.88 : x
  2. Step 2: Convert to fraction form
    36,769.91/55,143.90 = 13,390.88/x
  3. Step 3: Cross multiply
    36,769.91x = 55,143.90 × 13,390.88
  4. Step 4: Simplify right side
    36,769.91x = 738,425,071.91
  5. Step 5: Solve for x
    x = 738,425,071.91/36,769.91
  6. Step 6: Final answer
    x = 20,082.32

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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.