Home / 30,144.92-45,210.22-12,370.82

Finding the Fourth Proportional to 30,144.92, 45,210.22 and 12,370.82

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Solution

The fourth proportional to 30,144.92, 45,210.22 and 12,370.82 is: 18,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,144.92 : 45,210.22 = 12,370.82 : x
  2. Step 2: Convert to fraction form
    30,144.92/45,210.22 = 12,370.82/x
  3. Step 3: Cross multiply
    30,144.92x = 45,210.22 × 12,370.82
  4. Step 4: Simplify right side
    30,144.92x = 559,287,236.80
  5. Step 5: Solve for x
    x = 559,287,236.80/30,144.92
  6. Step 6: Final answer
    x = 18,553.29

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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.