Home / 28,732.96-43,099.08-11,215.09

Finding the Fourth Proportional to 28,732.96, 43,099.08 and 11,215.09

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Solution

The fourth proportional to 28,732.96, 43,099.08 and 11,215.09 is: 16,822.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,732.96 : 43,099.08 = 11,215.09 : x
  2. Step 2: Convert to fraction form
    28,732.96/43,099.08 = 11,215.09/x
  3. Step 3: Cross multiply
    28,732.96x = 43,099.08 × 11,215.09
  4. Step 4: Simplify right side
    28,732.96x = 483,360,061.12
  5. Step 5: Solve for x
    x = 483,360,061.12/28,732.96
  6. Step 6: Final answer
    x = 16,822.49

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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.