Home / 30,331.80-45,497.70-29,122.20

Finding the Fourth Proportional to 30,331.80, 45,497.70 and 29,122.20

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Solution

The fourth proportional to 30,331.80, 45,497.70 and 29,122.20 is: 43,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,331.80 : 45,497.70 = 29,122.20 : x
  2. Step 2: Convert to fraction form
    30,331.80/45,497.70 = 29,122.20/x
  3. Step 3: Cross multiply
    30,331.80x = 45,497.70 × 29,122.20
  4. Step 4: Simplify right side
    30,331.80x = 1,324,993,118.94
  5. Step 5: Solve for x
    x = 1,324,993,118.94/30,331.80
  6. Step 6: Final answer
    x = 43,683.30

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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.