Home / 20,850.40-31,275.78-6,059.44

Finding the Fourth Proportional to 20,850.40, 31,275.78 and 6,059.44

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Solution

The fourth proportional to 20,850.40, 31,275.78 and 6,059.44 is: 9,089.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.40 : 31,275.78 = 6,059.44 : x
  2. Step 2: Convert to fraction form
    20,850.40/31,275.78 = 6,059.44/x
  3. Step 3: Cross multiply
    20,850.40x = 31,275.78 × 6,059.44
  4. Step 4: Simplify right side
    20,850.40x = 189,513,712.36
  5. Step 5: Solve for x
    x = 189,513,712.36/20,850.40
  6. Step 6: Final answer
    x = 9,089.21

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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.