Home / 30,327.90-45,472.28-12,793.02

Finding the Fourth Proportional to 30,327.90, 45,472.28 and 12,793.02

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Solution

The fourth proportional to 30,327.90, 45,472.28 and 12,793.02 is: 19,181.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,327.90 : 45,472.28 = 12,793.02 : x
  2. Step 2: Convert to fraction form
    30,327.90/45,472.28 = 12,793.02/x
  3. Step 3: Cross multiply
    30,327.90x = 45,472.28 × 12,793.02
  4. Step 4: Simplify right side
    30,327.90x = 581,727,787.49
  5. Step 5: Solve for x
    x = 581,727,787.49/30,327.90
  6. Step 6: Final answer
    x = 19,181.27

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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.