Home / 28,925.20-43,412.41-20,625.54

Finding the Fourth Proportional to 28,925.20, 43,412.41 and 20,625.54

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Solution

The fourth proportional to 28,925.20, 43,412.41 and 20,625.54 is: 30,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,925.20 : 43,412.41 = 20,625.54 : x
  2. Step 2: Convert to fraction form
    28,925.20/43,412.41 = 20,625.54/x
  3. Step 3: Cross multiply
    28,925.20x = 43,412.41 × 20,625.54
  4. Step 4: Simplify right side
    28,925.20x = 895,404,145.92
  5. Step 5: Solve for x
    x = 895,404,145.92/28,925.20
  6. Step 6: Final answer
    x = 30,955.85

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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.