Home / 38,179.18-57,255.05-13,212.45

Finding the Fourth Proportional to 38,179.18, 57,255.05 and 13,212.45

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Solution

The fourth proportional to 38,179.18, 57,255.05 and 13,212.45 is: 19,813.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,179.18 : 57,255.05 = 13,212.45 : x
  2. Step 2: Convert to fraction form
    38,179.18/57,255.05 = 13,212.45/x
  3. Step 3: Cross multiply
    38,179.18x = 57,255.05 × 13,212.45
  4. Step 4: Simplify right side
    38,179.18x = 756,479,518.40
  5. Step 5: Solve for x
    x = 756,479,518.40/38,179.18
  6. Step 6: Final answer
    x = 19,813.93

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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.