Home / 19,331.40-29,007.90-8,236.20

Finding the Fourth Proportional to 19,331.40, 29,007.90 and 8,236.20

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Solution

The fourth proportional to 19,331.40, 29,007.90 and 8,236.20 is: 12,358.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331.40 : 29,007.90 = 8,236.20 : x
  2. Step 2: Convert to fraction form
    19,331.40/29,007.90 = 8,236.20/x
  3. Step 3: Cross multiply
    19,331.40x = 29,007.90 × 8,236.20
  4. Step 4: Simplify right side
    19,331.40x = 238,914,865.98
  5. Step 5: Solve for x
    x = 238,914,865.98/19,331.40
  6. Step 6: Final answer
    x = 12,358.90

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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.