Home / 30,207.44-45,320.88-12,672.56

Finding the Fourth Proportional to 30,207.44, 45,320.88 and 12,672.56

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Solution

The fourth proportional to 30,207.44, 45,320.88 and 12,672.56 is: 19,012.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.44 : 45,320.88 = 12,672.56 : x
  2. Step 2: Convert to fraction form
    30,207.44/45,320.88 = 12,672.56/x
  3. Step 3: Cross multiply
    30,207.44x = 45,320.88 × 12,672.56
  4. Step 4: Simplify right side
    30,207.44x = 574,331,571.05
  5. Step 5: Solve for x
    x = 574,331,571.05/30,207.44
  6. Step 6: Final answer
    x = 19,012.92

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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.