Home / 42,709.68-58,906.44-28,375.92

Finding the Fourth Proportional to 42,709.68, 58,906.44 and 28,375.92

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Solution

The fourth proportional to 42,709.68, 58,906.44 and 28,375.92 is: 39,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,709.68 : 58,906.44 = 28,375.92 : x
  2. Step 2: Convert to fraction form
    42,709.68/58,906.44 = 28,375.92/x
  3. Step 3: Cross multiply
    42,709.68x = 58,906.44 × 28,375.92
  4. Step 4: Simplify right side
    42,709.68x = 1,671,524,428.92
  5. Step 5: Solve for x
    x = 1,671,524,428.92/42,709.68
  6. Step 6: Final answer
    x = 39,136.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.