Home / 28,720.92-43,086.33-8,994.36

Finding the Fourth Proportional to 28,720.92, 43,086.33 and 8,994.36

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Solution

The fourth proportional to 28,720.92, 43,086.33 and 8,994.36 is: 13,493.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,720.92 : 43,086.33 = 8,994.36 : x
  2. Step 2: Convert to fraction form
    28,720.92/43,086.33 = 8,994.36/x
  3. Step 3: Cross multiply
    28,720.92x = 43,086.33 × 8,994.36
  4. Step 4: Simplify right side
    28,720.92x = 387,533,963.10
  5. Step 5: Solve for x
    x = 387,533,963.10/28,720.92
  6. Step 6: Final answer
    x = 13,493.09

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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.