Home / 30,560.21-45,858.18-12,789.38

Finding the Fourth Proportional to 30,560.21, 45,858.18 and 12,789.38

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Solution

The fourth proportional to 30,560.21, 45,858.18 and 12,789.38 is: 19,191.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,560.21 : 45,858.18 = 12,789.38 : x
  2. Step 2: Convert to fraction form
    30,560.21/45,858.18 = 12,789.38/x
  3. Step 3: Cross multiply
    30,560.21x = 45,858.18 × 12,789.38
  4. Step 4: Simplify right side
    30,560.21x = 586,497,852.73
  5. Step 5: Solve for x
    x = 586,497,852.73/30,560.21
  6. Step 6: Final answer
    x = 19,191.55

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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.