Home / 30,579.12-45,868.84-13,927.54

Finding the Fourth Proportional to 30,579.12, 45,868.84 and 13,927.54

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Solution

The fourth proportional to 30,579.12, 45,868.84 and 13,927.54 is: 20,891.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579.12 : 45,868.84 = 13,927.54 : x
  2. Step 2: Convert to fraction form
    30,579.12/45,868.84 = 13,927.54/x
  3. Step 3: Cross multiply
    30,579.12x = 45,868.84 × 13,927.54
  4. Step 4: Simplify right side
    30,579.12x = 638,840,103.85
  5. Step 5: Solve for x
    x = 638,840,103.85/30,579.12
  6. Step 6: Final answer
    x = 20,891.38

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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.