Home / 28,441.44-42,670.36-8,722.90

Finding the Fourth Proportional to 28,441.44, 42,670.36 and 8,722.90

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Solution

The fourth proportional to 28,441.44, 42,670.36 and 8,722.90 is: 13,086.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,441.44 : 42,670.36 = 8,722.90 : x
  2. Step 2: Convert to fraction form
    28,441.44/42,670.36 = 8,722.90/x
  3. Step 3: Cross multiply
    28,441.44x = 42,670.36 × 8,722.90
  4. Step 4: Simplify right side
    28,441.44x = 372,209,283.24
  5. Step 5: Solve for x
    x = 372,209,283.24/28,441.44
  6. Step 6: Final answer
    x = 13,086.86

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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.