Home / 28,016.43-42,028.70-8,292.39

Finding the Fourth Proportional to 28,016.43, 42,028.70 and 8,292.39

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Solution

The fourth proportional to 28,016.43, 42,028.70 and 8,292.39 is: 12,439.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,016.43 : 42,028.70 = 8,292.39 : x
  2. Step 2: Convert to fraction form
    28,016.43/42,028.70 = 8,292.39/x
  3. Step 3: Cross multiply
    28,016.43x = 42,028.70 × 8,292.39
  4. Step 4: Simplify right side
    28,016.43x = 348,518,330.13
  5. Step 5: Solve for x
    x = 348,518,330.13/28,016.43
  6. Step 6: Final answer
    x = 12,439.78

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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.