Home / 28,759.14-39,709.24-28,299.86

Finding the Fourth Proportional to 28,759.14, 39,709.24 and 28,299.86

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Solution

The fourth proportional to 28,759.14, 39,709.24 and 28,299.86 is: 39,075.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759.14 : 39,709.24 = 28,299.86 : x
  2. Step 2: Convert to fraction form
    28,759.14/39,709.24 = 28,299.86/x
  3. Step 3: Cross multiply
    28,759.14x = 39,709.24 × 28,299.86
  4. Step 4: Simplify right side
    28,759.14x = 1,123,765,932.71
  5. Step 5: Solve for x
    x = 1,123,765,932.71/28,759.14
  6. Step 6: Final answer
    x = 39,075.09

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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.