Home / 28,099.76-42,144.22-13,102.75

Finding the Fourth Proportional to 28,099.76, 42,144.22 and 13,102.75

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Solution

The fourth proportional to 28,099.76, 42,144.22 and 13,102.75 is: 19,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.76 : 42,144.22 = 13,102.75 : x
  2. Step 2: Convert to fraction form
    28,099.76/42,144.22 = 13,102.75/x
  3. Step 3: Cross multiply
    28,099.76x = 42,144.22 × 13,102.75
  4. Step 4: Simplify right side
    28,099.76x = 552,205,010.60
  5. Step 5: Solve for x
    x = 552,205,010.60/28,099.76
  6. Step 6: Final answer
    x = 19,651.60

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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.