Home / 20,146.10-30,216.36-5,356.22

Finding the Fourth Proportional to 20,146.10, 30,216.36 and 5,356.22

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Solution

The fourth proportional to 20,146.10, 30,216.36 and 5,356.22 is: 8,033.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.10 : 30,216.36 = 5,356.22 : x
  2. Step 2: Convert to fraction form
    20,146.10/30,216.36 = 5,356.22/x
  3. Step 3: Cross multiply
    20,146.10x = 30,216.36 × 5,356.22
  4. Step 4: Simplify right side
    20,146.10x = 161,845,471.76
  5. Step 5: Solve for x
    x = 161,845,471.76/20,146.10
  6. Step 6: Final answer
    x = 8,033.59

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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.