Home / 20,863.44-31,295.18-5,281.07

Finding the Fourth Proportional to 20,863.44, 31,295.18 and 5,281.07

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Solution

The fourth proportional to 20,863.44, 31,295.18 and 5,281.07 is: 7,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,863.44 : 31,295.18 = 5,281.07 : x
  2. Step 2: Convert to fraction form
    20,863.44/31,295.18 = 5,281.07/x
  3. Step 3: Cross multiply
    20,863.44x = 31,295.18 × 5,281.07
  4. Step 4: Simplify right side
    20,863.44x = 165,271,892.97
  5. Step 5: Solve for x
    x = 165,271,892.97/20,863.44
  6. Step 6: Final answer
    x = 7,921.60

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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.