Home / 20,852.28-31,278.16-5,057.44

Finding the Fourth Proportional to 20,852.28, 31,278.16 and 5,057.44

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Solution

The fourth proportional to 20,852.28, 31,278.16 and 5,057.44 is: 7,586.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,852.28 : 31,278.16 = 5,057.44 : x
  2. Step 2: Convert to fraction form
    20,852.28/31,278.16 = 5,057.44/x
  3. Step 3: Cross multiply
    20,852.28x = 31,278.16 × 5,057.44
  4. Step 4: Simplify right side
    20,852.28x = 158,187,328.75
  5. Step 5: Solve for x
    x = 158,187,328.75/20,852.28
  6. Step 6: Final answer
    x = 7,586.09

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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.