Home / 28,448.46-42,672.69-9,728.66

Finding the Fourth Proportional to 28,448.46, 42,672.69 and 9,728.66

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Solution

The fourth proportional to 28,448.46, 42,672.69 and 9,728.66 is: 14,592.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,448.46 : 42,672.69 = 9,728.66 : x
  2. Step 2: Convert to fraction form
    28,448.46/42,672.69 = 9,728.66/x
  3. Step 3: Cross multiply
    28,448.46x = 42,672.69 × 9,728.66
  4. Step 4: Simplify right side
    28,448.46x = 415,148,198.98
  5. Step 5: Solve for x
    x = 415,148,198.98/28,448.46
  6. Step 6: Final answer
    x = 14,592.99

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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.