Home / 20,982.84-28,952.64-12,599.52

Finding the Fourth Proportional to 20,982.84, 28,952.64 and 12,599.52

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Solution

The fourth proportional to 20,982.84, 28,952.64 and 12,599.52 is: 17,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982.84 : 28,952.64 = 12,599.52 : x
  2. Step 2: Convert to fraction form
    20,982.84/28,952.64 = 12,599.52/x
  3. Step 3: Cross multiply
    20,982.84x = 28,952.64 × 12,599.52
  4. Step 4: Simplify right side
    20,982.84x = 364,789,366.73
  5. Step 5: Solve for x
    x = 364,789,366.73/20,982.84
  6. Step 6: Final answer
    x = 17,385.13

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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.