Home / 31,238.28-46,857.48-12,770.28

Finding the Fourth Proportional to 31,238.28, 46,857.48 and 12,770.28

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Solution

The fourth proportional to 31,238.28, 46,857.48 and 12,770.28 is: 19,155.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,238.28 : 46,857.48 = 12,770.28 : x
  2. Step 2: Convert to fraction form
    31,238.28/46,857.48 = 12,770.28/x
  3. Step 3: Cross multiply
    31,238.28x = 46,857.48 × 12,770.28
  4. Step 4: Simplify right side
    31,238.28x = 598,383,139.69
  5. Step 5: Solve for x
    x = 598,383,139.69/31,238.28
  6. Step 6: Final answer
    x = 19,155.44

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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.