Home / 20,861.46-31,251.86-11,599.38

Finding the Fourth Proportional to 20,861.46, 31,251.86 and 11,599.38

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Solution

The fourth proportional to 20,861.46, 31,251.86 and 11,599.38 is: 17,376.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,861.46 : 31,251.86 = 11,599.38 : x
  2. Step 2: Convert to fraction form
    20,861.46/31,251.86 = 11,599.38/x
  3. Step 3: Cross multiply
    20,861.46x = 31,251.86 × 11,599.38
  4. Step 4: Simplify right side
    20,861.46x = 362,502,199.85
  5. Step 5: Solve for x
    x = 362,502,199.85/20,861.46
  6. Step 6: Final answer
    x = 17,376.65

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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.