Home / 28,229.64-42,344.51-8,513.84

Finding the Fourth Proportional to 28,229.64, 42,344.51 and 8,513.84

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Solution

The fourth proportional to 28,229.64, 42,344.51 and 8,513.84 is: 12,770.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.64 : 42,344.51 = 8,513.84 : x
  2. Step 2: Convert to fraction form
    28,229.64/42,344.51 = 8,513.84/x
  3. Step 3: Cross multiply
    28,229.64x = 42,344.51 × 8,513.84
  4. Step 4: Simplify right side
    28,229.64x = 360,514,128.73
  5. Step 5: Solve for x
    x = 360,514,128.73/28,229.64
  6. Step 6: Final answer
    x = 12,770.77

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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.