Home / 20,750.49-31,130.33-5,958.27

Finding the Fourth Proportional to 20,750.49, 31,130.33 and 5,958.27

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Solution

The fourth proportional to 20,750.49, 31,130.33 and 5,958.27 is: 8,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.49 : 31,130.33 = 5,958.27 : x
  2. Step 2: Convert to fraction form
    20,750.49/31,130.33 = 5,958.27/x
  3. Step 3: Cross multiply
    20,750.49x = 31,130.33 × 5,958.27
  4. Step 4: Simplify right side
    20,750.49x = 185,482,881.54
  5. Step 5: Solve for x
    x = 185,482,881.54/20,750.49
  6. Step 6: Final answer
    x = 8,938.72

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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.