Home / 28,745.15-39,672.99-17,422.56

Finding the Fourth Proportional to 28,745.15, 39,672.99 and 17,422.56

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Solution

The fourth proportional to 28,745.15, 39,672.99 and 17,422.56 is: 24,045.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,745.15 : 39,672.99 = 17,422.56 : x
  2. Step 2: Convert to fraction form
    28,745.15/39,672.99 = 17,422.56/x
  3. Step 3: Cross multiply
    28,745.15x = 39,672.99 × 17,422.56
  4. Step 4: Simplify right side
    28,745.15x = 691,205,048.65
  5. Step 5: Solve for x
    x = 691,205,048.65/28,745.15
  6. Step 6: Final answer
    x = 24,045.98

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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.