Home / 20,713.46-31,075.05-5,921.97

Finding the Fourth Proportional to 20,713.46, 31,075.05 and 5,921.97

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Solution

The fourth proportional to 20,713.46, 31,075.05 and 5,921.97 is: 8,884.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.46 : 31,075.05 = 5,921.97 : x
  2. Step 2: Convert to fraction form
    20,713.46/31,075.05 = 5,921.97/x
  3. Step 3: Cross multiply
    20,713.46x = 31,075.05 × 5,921.97
  4. Step 4: Simplify right side
    20,713.46x = 184,025,513.85
  5. Step 5: Solve for x
    x = 184,025,513.85/20,713.46
  6. Step 6: Final answer
    x = 8,884.35

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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.