Home / 20,750.14-31,120.47-5,958.94

Finding the Fourth Proportional to 20,750.14, 31,120.47 and 5,958.94

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Solution

The fourth proportional to 20,750.14, 31,120.47 and 5,958.94 is: 8,937.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.14 : 31,120.47 = 5,958.94 : x
  2. Step 2: Convert to fraction form
    20,750.14/31,120.47 = 5,958.94/x
  3. Step 3: Cross multiply
    20,750.14x = 31,120.47 × 5,958.94
  4. Step 4: Simplify right side
    20,750.14x = 185,445,013.50
  5. Step 5: Solve for x
    x = 185,445,013.50/20,750.14
  6. Step 6: Final answer
    x = 8,937.05

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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.