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Finding the Fourth Proportional to 28,509.44, 42,764.18 and 7,732.94

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Solution

The fourth proportional to 28,509.44, 42,764.18 and 7,732.94 is: 11,599.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,509.44 : 42,764.18 = 7,732.94 : x
  2. Step 2: Convert to fraction form
    28,509.44/42,764.18 = 7,732.94/x
  3. Step 3: Cross multiply
    28,509.44x = 42,764.18 × 7,732.94
  4. Step 4: Simplify right side
    28,509.44x = 330,692,585.60
  5. Step 5: Solve for x
    x = 330,692,585.60/28,509.44
  6. Step 6: Final answer
    x = 11,599.41

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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.