Home / 20,725.20-31,069.14-7,568.34

Finding the Fourth Proportional to 20,725.20, 31,069.14 and 7,568.34

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Solution

The fourth proportional to 20,725.20, 31,069.14 and 7,568.34 is: 11,345.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.20 : 31,069.14 = 7,568.34 : x
  2. Step 2: Convert to fraction form
    20,725.20/31,069.14 = 7,568.34/x
  3. Step 3: Cross multiply
    20,725.20x = 31,069.14 × 7,568.34
  4. Step 4: Simplify right side
    20,725.20x = 235,141,815.03
  5. Step 5: Solve for x
    x = 235,141,815.03/20,725.20
  6. Step 6: Final answer
    x = 11,345.70

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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.