Home / 20,725.14-31,087.61-5,934.05

Finding the Fourth Proportional to 20,725.14, 31,087.61 and 5,934.05

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Solution

The fourth proportional to 20,725.14, 31,087.61 and 5,934.05 is: 8,901.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.14 : 31,087.61 = 5,934.05 : x
  2. Step 2: Convert to fraction form
    20,725.14/31,087.61 = 5,934.05/x
  3. Step 3: Cross multiply
    20,725.14x = 31,087.61 × 5,934.05
  4. Step 4: Simplify right side
    20,725.14x = 184,475,408.10
  5. Step 5: Solve for x
    x = 184,475,408.10/20,725.14
  6. Step 6: Final answer
    x = 8,901.05

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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.