Home / 28,635.11-42,942.36-9,910.06

Finding the Fourth Proportional to 28,635.11, 42,942.36 and 9,910.06

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Solution

The fourth proportional to 28,635.11, 42,942.36 and 9,910.06 is: 14,861.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,635.11 : 42,942.36 = 9,910.06 : x
  2. Step 2: Convert to fraction form
    28,635.11/42,942.36 = 9,910.06/x
  3. Step 3: Cross multiply
    28,635.11x = 42,942.36 × 9,910.06
  4. Step 4: Simplify right side
    28,635.11x = 425,561,256.79
  5. Step 5: Solve for x
    x = 425,561,256.79/28,635.11
  6. Step 6: Final answer
    x = 14,861.52

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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.