Home / 29,855.70-41,197.41-20,438.10

Finding the Fourth Proportional to 29,855.70, 41,197.41 and 20,438.10

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Solution

The fourth proportional to 29,855.70, 41,197.41 and 20,438.10 is: 28,202.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,855.70 : 41,197.41 = 20,438.10 : x
  2. Step 2: Convert to fraction form
    29,855.70/41,197.41 = 20,438.10/x
  3. Step 3: Cross multiply
    29,855.70x = 41,197.41 × 20,438.10
  4. Step 4: Simplify right side
    29,855.70x = 841,996,785.32
  5. Step 5: Solve for x
    x = 841,996,785.32/29,855.70
  6. Step 6: Final answer
    x = 28,202.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.