Home / 19,320.43-28,977.22-8,787.99

Finding the Fourth Proportional to 19,320.43, 28,977.22 and 8,787.99

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Solution

The fourth proportional to 19,320.43, 28,977.22 and 8,787.99 is: 13,180.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.43 : 28,977.22 = 8,787.99 : x
  2. Step 2: Convert to fraction form
    19,320.43/28,977.22 = 8,787.99/x
  3. Step 3: Cross multiply
    19,320.43x = 28,977.22 × 8,787.99
  4. Step 4: Simplify right side
    19,320.43x = 254,651,519.59
  5. Step 5: Solve for x
    x = 254,651,519.59/19,320.43
  6. Step 6: Final answer
    x = 13,180.43

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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.