Home / 26,491.20-39,736.80-15,410.40

Finding the Fourth Proportional to 26,491.20, 39,736.80 and 15,410.40

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Solution

The fourth proportional to 26,491.20, 39,736.80 and 15,410.40 is: 23,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,491.20 : 39,736.80 = 15,410.40 : x
  2. Step 2: Convert to fraction form
    26,491.20/39,736.80 = 15,410.40/x
  3. Step 3: Cross multiply
    26,491.20x = 39,736.80 × 15,410.40
  4. Step 4: Simplify right side
    26,491.20x = 612,359,982.72
  5. Step 5: Solve for x
    x = 612,359,982.72/26,491.20
  6. Step 6: Final answer
    x = 23,115.60

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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.