Home / 28,936.06-43,404.90-9,215.80

Finding the Fourth Proportional to 28,936.06, 43,404.90 and 9,215.80

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Solution

The fourth proportional to 28,936.06, 43,404.90 and 9,215.80 is: 13,823.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936.06 : 43,404.90 = 9,215.80 : x
  2. Step 2: Convert to fraction form
    28,936.06/43,404.90 = 9,215.80/x
  3. Step 3: Cross multiply
    28,936.06x = 43,404.90 × 9,215.80
  4. Step 4: Simplify right side
    28,936.06x = 400,010,877.42
  5. Step 5: Solve for x
    x = 400,010,877.42/28,936.06
  6. Step 6: Final answer
    x = 13,823.96

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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.