Home / 28,517.91-39,353.58-15,770.26

Finding the Fourth Proportional to 28,517.91, 39,353.58 and 15,770.26

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Solution

The fourth proportional to 28,517.91, 39,353.58 and 15,770.26 is: 21,762.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.91 : 39,353.58 = 15,770.26 : x
  2. Step 2: Convert to fraction form
    28,517.91/39,353.58 = 15,770.26/x
  3. Step 3: Cross multiply
    28,517.91x = 39,353.58 × 15,770.26
  4. Step 4: Simplify right side
    28,517.91x = 620,616,188.53
  5. Step 5: Solve for x
    x = 620,616,188.53/28,517.91
  6. Step 6: Final answer
    x = 21,762.33

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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.