Home / 28,897.60-39,850.50-19,321.24

Finding the Fourth Proportional to 28,897.60, 39,850.50 and 19,321.24

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Solution

The fourth proportional to 28,897.60, 39,850.50 and 19,321.24 is: 26,644.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,897.60 : 39,850.50 = 19,321.24 : x
  2. Step 2: Convert to fraction form
    28,897.60/39,850.50 = 19,321.24/x
  3. Step 3: Cross multiply
    28,897.60x = 39,850.50 × 19,321.24
  4. Step 4: Simplify right side
    28,897.60x = 769,961,074.62
  5. Step 5: Solve for x
    x = 769,961,074.62/28,897.60
  6. Step 6: Final answer
    x = 26,644.46

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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.