Home / 28,624.56-42,963.27-20,627.64

Finding the Fourth Proportional to 28,624.56, 42,963.27 and 20,627.64

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Solution

The fourth proportional to 28,624.56, 42,963.27 and 20,627.64 is: 30,960.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,624.56 : 42,963.27 = 20,627.64 : x
  2. Step 2: Convert to fraction form
    28,624.56/42,963.27 = 20,627.64/x
  3. Step 3: Cross multiply
    28,624.56x = 42,963.27 × 20,627.64
  4. Step 4: Simplify right side
    28,624.56x = 886,230,866.78
  5. Step 5: Solve for x
    x = 886,230,866.78/28,624.56
  6. Step 6: Final answer
    x = 30,960.51

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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.