Home / 13,431.07-20,150.25-4,070.71

Finding the Fourth Proportional to 13,431.07, 20,150.25 and 4,070.71

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Solution

The fourth proportional to 13,431.07, 20,150.25 and 4,070.71 is: 6,107.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.07 : 20,150.25 = 4,070.71 : x
  2. Step 2: Convert to fraction form
    13,431.07/20,150.25 = 4,070.71/x
  3. Step 3: Cross multiply
    13,431.07x = 20,150.25 × 4,070.71
  4. Step 4: Simplify right side
    13,431.07x = 82,025,824.18
  5. Step 5: Solve for x
    x = 82,025,824.18/13,431.07
  6. Step 6: Final answer
    x = 6,107.17

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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.