Home / 55,247.40-82,883.10-20,187

Finding the Fourth Proportional to 55,247.40, 82,883.10 and 20,187

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Solution

The fourth proportional to 55,247.40, 82,883.10 and 20,187 is: 30,284.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,247.40 : 82,883.10 = 20,187 : x
  2. Step 2: Convert to fraction form
    55,247.40/82,883.10 = 20,187/x
  3. Step 3: Cross multiply
    55,247.40x = 82,883.10 × 20,187
  4. Step 4: Simplify right side
    55,247.40x = 1,673,161,139.70
  5. Step 5: Solve for x
    x = 1,673,161,139.70/55,247.40
  6. Step 6: Final answer
    x = 30,284.88

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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.