Home / 28,432.41-42,561.14-18,550.41

Finding the Fourth Proportional to 28,432.41, 42,561.14 and 18,550.41

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Solution

The fourth proportional to 28,432.41, 42,561.14 and 18,550.41 is: 27,768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.41 : 42,561.14 = 18,550.41 : x
  2. Step 2: Convert to fraction form
    28,432.41/42,561.14 = 18,550.41/x
  3. Step 3: Cross multiply
    28,432.41x = 42,561.14 × 18,550.41
  4. Step 4: Simplify right side
    28,432.41x = 789,526,504.32
  5. Step 5: Solve for x
    x = 789,526,504.32/28,432.41
  6. Step 6: Final answer
    x = 27,768.54

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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.