Home / 30,363.40-45,539.93-8,171.83

Finding the Fourth Proportional to 30,363.40, 45,539.93 and 8,171.83

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Solution

The fourth proportional to 30,363.40, 45,539.93 and 8,171.83 is: 12,256.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,363.40 : 45,539.93 = 8,171.83 : x
  2. Step 2: Convert to fraction form
    30,363.40/45,539.93 = 8,171.83/x
  3. Step 3: Cross multiply
    30,363.40x = 45,539.93 × 8,171.83
  4. Step 4: Simplify right side
    30,363.40x = 372,144,472.75
  5. Step 5: Solve for x
    x = 372,144,472.75/30,363.40
  6. Step 6: Final answer
    x = 12,256.35

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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.