Home / 26,391.60-39,532.20-12,363.60

Finding the Fourth Proportional to 26,391.60, 39,532.20 and 12,363.60

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Solution

The fourth proportional to 26,391.60, 39,532.20 and 12,363.60 is: 18,519.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,391.60 : 39,532.20 = 12,363.60 : x
  2. Step 2: Convert to fraction form
    26,391.60/39,532.20 = 12,363.60/x
  3. Step 3: Cross multiply
    26,391.60x = 39,532.20 × 12,363.60
  4. Step 4: Simplify right side
    26,391.60x = 488,760,307.92
  5. Step 5: Solve for x
    x = 488,760,307.92/26,391.60
  6. Step 6: Final answer
    x = 18,519.54

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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.