Home / 28,538.20-42,880.20-25,330.60

Finding the Fourth Proportional to 28,538.20, 42,880.20 and 25,330.60

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Solution

The fourth proportional to 28,538.20, 42,880.20 and 25,330.60 is: 38,060.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538.20 : 42,880.20 = 25,330.60 : x
  2. Step 2: Convert to fraction form
    28,538.20/42,880.20 = 25,330.60/x
  3. Step 3: Cross multiply
    28,538.20x = 42,880.20 × 25,330.60
  4. Step 4: Simplify right side
    28,538.20x = 1,086,181,194.12
  5. Step 5: Solve for x
    x = 1,086,181,194.12/28,538.20
  6. Step 6: Final answer
    x = 38,060.61

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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.