Home / 20,984.84-28,955.40-12,601.52

Finding the Fourth Proportional to 20,984.84, 28,955.40 and 12,601.52

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Solution

The fourth proportional to 20,984.84, 28,955.40 and 12,601.52 is: 17,387.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.84 : 28,955.40 = 12,601.52 : x
  2. Step 2: Convert to fraction form
    20,984.84/28,955.40 = 12,601.52/x
  3. Step 3: Cross multiply
    20,984.84x = 28,955.40 × 12,601.52
  4. Step 4: Simplify right side
    20,984.84x = 364,882,052.21
  5. Step 5: Solve for x
    x = 364,882,052.21/20,984.84
  6. Step 6: Final answer
    x = 17,387.89

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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.