Home / 19,745.20-29,560.20-17,671.60

Finding the Fourth Proportional to 19,745.20, 29,560.20 and 17,671.60

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Solution

The fourth proportional to 19,745.20, 29,560.20 and 17,671.60 is: 26,455.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,745.20 : 29,560.20 = 17,671.60 : x
  2. Step 2: Convert to fraction form
    19,745.20/29,560.20 = 17,671.60/x
  3. Step 3: Cross multiply
    19,745.20x = 29,560.20 × 17,671.60
  4. Step 4: Simplify right side
    19,745.20x = 522,376,030.32
  5. Step 5: Solve for x
    x = 522,376,030.32/19,745.20
  6. Step 6: Final answer
    x = 26,455.85

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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.