Home / 28,290.32-42,441.57-8,301.44

Finding the Fourth Proportional to 28,290.32, 42,441.57 and 8,301.44

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Solution

The fourth proportional to 28,290.32, 42,441.57 and 8,301.44 is: 12,453.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.32 : 42,441.57 = 8,301.44 : x
  2. Step 2: Convert to fraction form
    28,290.32/42,441.57 = 8,301.44/x
  3. Step 3: Cross multiply
    28,290.32x = 42,441.57 × 8,301.44
  4. Step 4: Simplify right side
    28,290.32x = 352,326,146.86
  5. Step 5: Solve for x
    x = 352,326,146.86/28,290.32
  6. Step 6: Final answer
    x = 12,453.95

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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.