Home / 30,553.45-45,830.11-8,368.55

Finding the Fourth Proportional to 30,553.45, 45,830.11 and 8,368.55

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Solution

The fourth proportional to 30,553.45, 45,830.11 and 8,368.55 is: 12,552.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,553.45 : 45,830.11 = 8,368.55 : x
  2. Step 2: Convert to fraction form
    30,553.45/45,830.11 = 8,368.55/x
  3. Step 3: Cross multiply
    30,553.45x = 45,830.11 × 8,368.55
  4. Step 4: Simplify right side
    30,553.45x = 383,531,567.04
  5. Step 5: Solve for x
    x = 383,531,567.04/30,553.45
  6. Step 6: Final answer
    x = 12,552.81

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1.5x scale

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.