Home / 20,921.24-31,382.46-6,130.17

Finding the Fourth Proportional to 20,921.24, 31,382.46 and 6,130.17

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Solution

The fourth proportional to 20,921.24, 31,382.46 and 6,130.17 is: 9,195.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,921.24 : 31,382.46 = 6,130.17 : x
  2. Step 2: Convert to fraction form
    20,921.24/31,382.46 = 6,130.17/x
  3. Step 3: Cross multiply
    20,921.24x = 31,382.46 × 6,130.17
  4. Step 4: Simplify right side
    20,921.24x = 192,379,814.82
  5. Step 5: Solve for x
    x = 192,379,814.82/20,921.24
  6. Step 6: Final answer
    x = 9,195.43

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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.