Home / 26,105.40-39,158.10-18,156.60

Finding the Fourth Proportional to 26,105.40, 39,158.10 and 18,156.60

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Solution

The fourth proportional to 26,105.40, 39,158.10 and 18,156.60 is: 27,234.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,105.40 : 39,158.10 = 18,156.60 : x
  2. Step 2: Convert to fraction form
    26,105.40/39,158.10 = 18,156.60/x
  3. Step 3: Cross multiply
    26,105.40x = 39,158.10 × 18,156.60
  4. Step 4: Simplify right side
    26,105.40x = 710,977,958.46
  5. Step 5: Solve for x
    x = 710,977,958.46/26,105.40
  6. Step 6: Final answer
    x = 27,234.90

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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.