Home / 30,000.23-45,002.94-7,813.62

Finding the Fourth Proportional to 30,000.23, 45,002.94 and 7,813.62

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Solution

The fourth proportional to 30,000.23, 45,002.94 and 7,813.62 is: 11,721.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,000.23 : 45,002.94 = 7,813.62 : x
  2. Step 2: Convert to fraction form
    30,000.23/45,002.94 = 7,813.62/x
  3. Step 3: Cross multiply
    30,000.23x = 45,002.94 × 7,813.62
  4. Step 4: Simplify right side
    30,000.23x = 351,635,872.04
  5. Step 5: Solve for x
    x = 351,635,872.04/30,000.23
  6. Step 6: Final answer
    x = 11,721.11

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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.