Home / 20,966.76-31,439.28-6,173.73

Finding the Fourth Proportional to 20,966.76, 31,439.28 and 6,173.73

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Solution

The fourth proportional to 20,966.76, 31,439.28 and 6,173.73 is: 9,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,966.76 : 31,439.28 = 6,173.73 : x
  2. Step 2: Convert to fraction form
    20,966.76/31,439.28 = 6,173.73/x
  3. Step 3: Cross multiply
    20,966.76x = 31,439.28 × 6,173.73
  4. Step 4: Simplify right side
    20,966.76x = 194,097,626.11
  5. Step 5: Solve for x
    x = 194,097,626.11/20,966.76
  6. Step 6: Final answer
    x = 9,257.40

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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.