Home / 28,517.44-42,776.18-7,740.94

Finding the Fourth Proportional to 28,517.44, 42,776.18 and 7,740.94

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Solution

The fourth proportional to 28,517.44, 42,776.18 and 7,740.94 is: 11,611.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.44 : 42,776.18 = 7,740.94 : x
  2. Step 2: Convert to fraction form
    28,517.44/42,776.18 = 7,740.94/x
  3. Step 3: Cross multiply
    28,517.44x = 42,776.18 × 7,740.94
  4. Step 4: Simplify right side
    28,517.44x = 331,127,842.81
  5. Step 5: Solve for x
    x = 331,127,842.81/28,517.44
  6. Step 6: Final answer
    x = 11,611.42

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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.