Home / 26,311.60-39,491.70-13,173.40

Finding the Fourth Proportional to 26,311.60, 39,491.70 and 13,173.40

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Solution

The fourth proportional to 26,311.60, 39,491.70 and 13,173.40 is: 19,772.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,311.60 : 39,491.70 = 13,173.40 : x
  2. Step 2: Convert to fraction form
    26,311.60/39,491.70 = 13,173.40/x
  3. Step 3: Cross multiply
    26,311.60x = 39,491.70 × 13,173.40
  4. Step 4: Simplify right side
    26,311.60x = 520,239,960.78
  5. Step 5: Solve for x
    x = 520,239,960.78/26,311.60
  6. Step 6: Final answer
    x = 19,772.27

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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.