Home / 21,426.70-32,133.82-8,276.08

Finding the Fourth Proportional to 21,426.70, 32,133.82 and 8,276.08

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Solution

The fourth proportional to 21,426.70, 32,133.82 and 8,276.08 is: 12,411.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,426.70 : 32,133.82 = 8,276.08 : x
  2. Step 2: Convert to fraction form
    21,426.70/32,133.82 = 8,276.08/x
  3. Step 3: Cross multiply
    21,426.70x = 32,133.82 × 8,276.08
  4. Step 4: Simplify right side
    21,426.70x = 265,942,065.03
  5. Step 5: Solve for x
    x = 265,942,065.03/21,426.70
  6. Step 6: Final answer
    x = 12,411.71

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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.