Home / 20,348.48-30,475.32-19,787.94

Finding the Fourth Proportional to 20,348.48, 30,475.32 and 19,787.94

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Solution

The fourth proportional to 20,348.48, 30,475.32 and 19,787.94 is: 29,635.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.48 : 30,475.32 = 19,787.94 : x
  2. Step 2: Convert to fraction form
    20,348.48/30,475.32 = 19,787.94/x
  3. Step 3: Cross multiply
    20,348.48x = 30,475.32 × 19,787.94
  4. Step 4: Simplify right side
    20,348.48x = 603,043,803.64
  5. Step 5: Solve for x
    x = 603,043,803.64/20,348.48
  6. Step 6: Final answer
    x = 29,635.82

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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.