Home / 28,449.41-42,680.75-9,729.59

Finding the Fourth Proportional to 28,449.41, 42,680.75 and 9,729.59

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Solution

The fourth proportional to 28,449.41, 42,680.75 and 9,729.59 is: 14,596.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449.41 : 42,680.75 = 9,729.59 : x
  2. Step 2: Convert to fraction form
    28,449.41/42,680.75 = 9,729.59/x
  3. Step 3: Cross multiply
    28,449.41x = 42,680.75 × 9,729.59
  4. Step 4: Simplify right side
    28,449.41x = 415,265,936.34
  5. Step 5: Solve for x
    x = 415,265,936.34/28,449.41
  6. Step 6: Final answer
    x = 14,596.65

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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.