Home / 28,497.28-39,326.20-15,751.44

Finding the Fourth Proportional to 28,497.28, 39,326.20 and 15,751.44

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Solution

The fourth proportional to 28,497.28, 39,326.20 and 15,751.44 is: 21,736.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,497.28 : 39,326.20 = 15,751.44 : x
  2. Step 2: Convert to fraction form
    28,497.28/39,326.20 = 15,751.44/x
  3. Step 3: Cross multiply
    28,497.28x = 39,326.20 × 15,751.44
  4. Step 4: Simplify right side
    28,497.28x = 619,444,279.73
  5. Step 5: Solve for x
    x = 619,444,279.73/28,497.28
  6. Step 6: Final answer
    x = 21,736.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.