Home / 20,134.91-30,176.84-11,374.76

Finding the Fourth Proportional to 20,134.91, 30,176.84 and 11,374.76

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Solution

The fourth proportional to 20,134.91, 30,176.84 and 11,374.76 is: 17,047.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.91 : 30,176.84 = 11,374.76 : x
  2. Step 2: Convert to fraction form
    20,134.91/30,176.84 = 11,374.76/x
  3. Step 3: Cross multiply
    20,134.91x = 30,176.84 × 11,374.76
  4. Step 4: Simplify right side
    20,134.91x = 343,254,190.11
  5. Step 5: Solve for x
    x = 343,254,190.11/20,134.91
  6. Step 6: Final answer
    x = 17,047.72

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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.