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Finding the Fourth Proportional to 28,501.67, 42,745.17 and 13,493.99

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Solution

The fourth proportional to 28,501.67, 42,745.17 and 13,493.99 is: 20,237.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.67 : 42,745.17 = 13,493.99 : x
  2. Step 2: Convert to fraction form
    28,501.67/42,745.17 = 13,493.99/x
  3. Step 3: Cross multiply
    28,501.67x = 42,745.17 × 13,493.99
  4. Step 4: Simplify right side
    28,501.67x = 576,802,896.53
  5. Step 5: Solve for x
    x = 576,802,896.53/28,501.67
  6. Step 6: Final answer
    x = 20,237.51

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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.