Home / 28,086.43-42,135.17-9,366.22

Finding the Fourth Proportional to 28,086.43, 42,135.17 and 9,366.22

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Solution

The fourth proportional to 28,086.43, 42,135.17 and 9,366.22 is: 14,051.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086.43 : 42,135.17 = 9,366.22 : x
  2. Step 2: Convert to fraction form
    28,086.43/42,135.17 = 9,366.22/x
  3. Step 3: Cross multiply
    28,086.43x = 42,135.17 × 9,366.22
  4. Step 4: Simplify right side
    28,086.43x = 394,647,271.96
  5. Step 5: Solve for x
    x = 394,647,271.96/28,086.43
  6. Step 6: Final answer
    x = 14,051.17

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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.