Home / 28,350.30-39,122.85-17,745.78

Finding the Fourth Proportional to 28,350.30, 39,122.85 and 17,745.78

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Solution

The fourth proportional to 28,350.30, 39,122.85 and 17,745.78 is: 24,488.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,350.30 : 39,122.85 = 17,745.78 : x
  2. Step 2: Convert to fraction form
    28,350.30/39,122.85 = 17,745.78/x
  3. Step 3: Cross multiply
    28,350.30x = 39,122.85 × 17,745.78
  4. Step 4: Simplify right side
    28,350.30x = 694,265,602.51
  5. Step 5: Solve for x
    x = 694,265,602.51/28,350.30
  6. Step 6: Final answer
    x = 24,488.82

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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.