Home / 21,387.97-32,087.41-8,903.84

Finding the Fourth Proportional to 21,387.97, 32,087.41 and 8,903.84

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Solution

The fourth proportional to 21,387.97, 32,087.41 and 8,903.84 is: 13,358.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387.97 : 32,087.41 = 8,903.84 : x
  2. Step 2: Convert to fraction form
    21,387.97/32,087.41 = 8,903.84/x
  3. Step 3: Cross multiply
    21,387.97x = 32,087.41 × 8,903.84
  4. Step 4: Simplify right side
    21,387.97x = 285,701,164.65
  5. Step 5: Solve for x
    x = 285,701,164.65/21,387.97
  6. Step 6: Final answer
    x = 13,358.03

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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.